# Chalkline

> The reference site for Australian residential building. Compliance, contracts, practical site work, materials, trades, WHS. Plain English with NCC and AS citations.

Maintained by Dan, Chalkline (chalkline.com.au). Wiki content is licensed CC BY 4.0. Reviewed quarterly.

## Compliance and regulation

- [ACT builder licence: classes, qualifications, fees and what to know before you start](https://chalkline.com.au/compliance/act-licensing): ACT builder licence classes A to D, qualification routes, 2025-26 fees, residential building warranty, mutual recognition and the demerit po
- [Apartment Design Guide (NSW, SEPP 65)](https://chalkline.com.au/compliance/apartment-design-guide): NSW Apartment Design Guide is the residential flat building design standard under SEPP 65. Sets solar access, cross-ventilation, apartment s
- [AS 1288:2021: glass in buildings, selection and installation](https://chalkline.com.au/compliance/as-1288): AS 1288:2021 governs glass selection and installation in Australian buildings. Covers human impact zones, wind loading, safety glazing grade
- [AS 1379: specification and supply of concrete](https://chalkline.com.au/compliance/as-1379): AS 1379 is the standard for ordering and supplying concrete: normal-class grades N20 to N50, slump, aggregate, and what the delivery docket 
- [AS 1428 Design for access and mobility: builder's guide](https://chalkline.com.au/compliance/as-1428): AS 1428 design for access and mobility explained for Australian builders: which parts apply to residential work, NCC H8 livable housing silv
- [AS 1562 (metal roofing): the standard behind every metal sheet roof](https://chalkline.com.au/compliance/as-1562-metal-roofing): AS 1562.1:2018 sets the design and install rules for metal sheet roof and wall cladding: fixing patterns, minimum pitches, wind testing unde
- [AS 1604.1: treated timber and the H1 to H6 hazard classes](https://chalkline.com.au/compliance/as-1604-1): AS 1604.1 sets the H1 to H6 hazard classes for preservative-treated timber. Which H-class to order for framing, cladding, decking, and posts
- [AS 1684: residential timber-framed construction](https://chalkline.com.au/compliance/as-1684): AS 1684 governs residential timber-framed construction in four parts. Covers wind classes N1-N4 and C1-C3, span tables, tie-downs, and NCC D
- [AS 1684.3: timber framing in cyclonic areas](https://chalkline.com.au/compliance/as-1684-3): AS 1684.3 is the timber-framing standard for cyclonic areas (wind classes C1 to C3). It ramps up fixing density and tie-down hardware over t
- [AS 1720.5 (nailplated trusses): the design code behind the certificate](https://chalkline.com.au/compliance/as-1720-5-nailplated-trusses): AS 1720.5 is the design standard for nailplated timber roof trusses. The truss engineer designs to it; the certificate handed to the builder
- [AS 1726 (Geotechnical site investigations)](https://chalkline.com.au/compliance/as-1726): AS 1726:2017 sets the methodology for geotech investigations: boreholes, SPT, sample logging, soil description, reporting format. The basis 
- [AS 1926: swimming pool safety standard](https://chalkline.com.au/compliance/as-1926): AS 1926 is the Australian Standard for swimming pool safety in three parts: barriers (.1), barrier location (.2), water recirculation (.3). 
- [AS 1926.1: pool and spa safety barriers](https://chalkline.com.au/compliance/as-1926-1): AS 1926.1:2012 sets the technical rules for pool and spa safety barriers in Australia: 1,200 mm fence, 900 mm NCZ, 100 mm gap, self-closing 
- [AS 2047-2014: windows and external glazed doors in buildings](https://chalkline.com.au/compliance/as-2047): AS 2047-2014 governs windows and external glazed doors in Australian residential buildings. Key requirements, NCC link, wind classes, and wh
- [AS 2050 (roof tile install): pitch, fixing, sarking](https://chalkline.com.au/compliance/as-2050-roof-tiles): AS 2050:2018 is the install standard for concrete, terracotta and slate roof tiles. Minimum pitch by profile, fixing density by wind class, 
- [AS 2082 (Visually stress-graded hardwood)](https://chalkline.com.au/compliance/as-2082-hardwood-grading): AS 2082:2007 sets the visual grading rules for hardwood structural timber. F-grade and species combinations, defects, grade stamps. The basi
- [AS 2699: built-in components for masonry construction](https://chalkline.com.au/compliance/as-2699): AS 2699 is the three-part standard for masonry built-in components: wall ties (Pt1), connectors (Pt2), lintels and shelf angles (Pt3). The N
- [AS 2870-2011: residential slabs and footings](https://chalkline.com.au/compliance/as-2870): AS 2870-2011 governs residential slab and footing design in Australia. Site classifications A/S/M/H1/H2/E/P, NCC link, engineer triggers, an
- [AS 3600: concrete structures](https://chalkline.com.au/compliance/as-3600): AS 3600 is the Australian Standard for reinforced and prestressed concrete structures: cover, grade, and detailing for suspended slabs, beam
- [AS 3660: termite management standard](https://chalkline.com.au/compliance/as-3660): AS 3660 (multi-part) is the Australian Standard for termite management. Part 1 new buildings, Part 2 existing, Part 3 assessment criteria. C
- [AS 3660.2: termite management in existing buildings](https://chalkline.com.au/compliance/as-3660-2): AS 3660.2 is the standard for managing termites in existing buildings: annual inspections, re-treatment, barrier repair, and the Termite Man
- [AS 3660.3: how termite management products are assessed](https://chalkline.com.au/compliance/as-3660-3): AS 3660.3:2014 sets the pass/fail criteria and test methods for assessing termite management systems, the path products like Kordon are prov
- [AS 3700:2018: masonry structures](https://chalkline.com.au/compliance/as-3700): AS 3700:2018 governs masonry structures in Australia. Key requirements for veneer, cavity, articulation joints, DPC, weep holes, and NCC H1D
- [AS 3740-2021: waterproofing of domestic wet areas](https://chalkline.com.au/compliance/as-3740): AS 3740-2021 is the Australian standard for domestic wet area waterproofing. Key requirements, NCC link, common defects, and who must hold a
- [AS 3786: smoke alarms in residential buildings](https://chalkline.com.au/compliance/smoke-alarms): AS 3786 sets product requirements for smoke alarms. NCC 2022 V2 H3D6 calls them up for Class 1, 1b, 2 dwellings. Mains-powered, interconnect
- [AS 3798-2007: earthworks for commercial and residential developments](https://chalkline.com.au/compliance/as-3798): AS 3798:2007 governs site earthworks for Australian residential and commercial builds. Level 1 vs Level 2 supervision, GITA, compaction test
- [AS 3958: ceramic tile installation](https://chalkline.com.au/compliance/as-3958): AS 3958 covers ceramic tile installation: substrates, adhesives, grouts, movement joints, falls, finished tolerances. Often paired with AS 3
- [AS 3959-2018: Construction of buildings in bushfire-prone areas](https://chalkline.com.au/compliance/as-3959-bushfire): AS 3959-2018 explained for AU builders: scope, BAL methods, six bands, construction requirements, NCC interaction. The bushfire standard for
- [AS 3999 (bulk insulation install): no compression, no gaps](https://chalkline.com.au/compliance/as-3999-bulk-insulation): AS 3999:2015 is the install standard for bulk thermal insulation in dwellings. No compression, no gaps, no thermal bridges. Turns product R-
- [AS 4055: wind loads for housing](https://chalkline.com.au/compliance/as-4055): AS 4055 wind loads for housing explained: wind classes N1-N6 and C1-C4, geometric limits, how to determine your site wind class, and NCC 202
- [AS 4100 (Steel structures): the design code every steel beam sits under](https://chalkline.com.au/compliance/as-4100): AS 4100 is the Australian Standard for designing structural steelwork: ultimate limit state, member capacity, connections. Engineer-only des
- [AS 4145 (mechanical locks): the star-rating standard](https://chalkline.com.au/compliance/as-4145-locks): AS 4145.2:2008 is the test standard behind the 1-star to 6-star security rating on mechanical door locks. Affects insurance and external-ent
- [AS 4200 (Pliable building membranes): the wrap and sarking standard](https://chalkline.com.au/compliance/as-4200): AS 4200.1 / .2 define the four vapour classes for sarking and wall wraps, plus install rules. NCC 2022 Part 10.8 calls up specific classes b
- [AS 4291.1: property-class system for steel fasteners](https://chalkline.com.au/compliance/as-4291): AS 4291.1:2015 sets the property class system (4.6, 8.8, 10.9) for steel bolts, screws, and studs in Australia. Strength values, markings, a
- [AS 4440 (truss installation): the chippy's standard on lift-and-set day](https://chalkline.com.au/compliance/as-4440-truss-installation): AS 4440:2004 is the install standard for nailplated timber roof trusses: temporary bracing, permanent bracing, bearing minimums, plumb/bow t
- [AS 4586: slip resistance classification of pedestrian surfaces](https://chalkline.com.au/compliance/as-4586): AS 4586:2013 classifies the slip resistance of new pedestrian surfaces by wet pendulum (P0 to P5) and oil-wet ramp (R9 to R13). What's teste
- [AS 4654.1 (membrane materials): product spec for external above-ground](https://chalkline.com.au/compliance/as-4654-1-membrane-materials): AS 4654.1 sets product specs for waterproofing membranes used externally above ground: flat roofs, balconies, planters. Three exposure class
- [AS 4654.2 (membrane design): falls, upstands, laps, terminations](https://chalkline.com.au/compliance/as-4654-2-membrane-design): AS 4654.2 sets the design and install rules for external above-ground membranes: 1:100 minimum fall, 150 mm minimum upstand, seam laps, term
- [AS 4773:2015 masonry in small buildings: builder's guide](https://chalkline.com.au/compliance/as-4773): AS 4773:2015 is the go-to masonry standard for Class 1 houses. Covers geometric limits, ties, articulation joints, cavity and veneer walls u
- [AS 5216: design of post-installed and cast-in fastenings in concrete](https://chalkline.com.au/compliance/as-5216): AS 5216:2021 is the AU standard for designing post-installed and cast-in concrete fastenings. Anchors must be prequalified per Appendix A or
- [AS 5604 (timber durability): the natural durability classes](https://chalkline.com.au/compliance/as-5604-timber-durability): AS 5604:2005 sets the natural durability rating of timber heartwood for in-ground (Class 1-4) and above-ground use. Selects species for post
- [AS/NZS 1163 (Structural steel hollow sections): the spec under every post](https://chalkline.com.au/compliance/as-nzs-1163): AS/NZS 1163 is the product standard for cold-formed structural hollow sections in AU/NZ. Grades C350L0, C450L0. SHS, RHS, CHS. Posts, column
- [AS/NZS 1170 Structural design actions: what builders need to know](https://chalkline.com.au/compliance/as-1170): AS/NZS 1170 structural design actions explained for Australian builders: which parts apply to residential work, wind regions, earthquake rul
- [AS/NZS 1214: hot-dip galvanised coatings on threaded fasteners](https://chalkline.com.au/compliance/as-nzs-1214): AS/NZS 1214:2016 sets HDG coating thickness, finish, and test methods for threaded fasteners in external decks, pergolas, and structural con
- [AS/NZS 1393: dimensional standard for metric coach screws](https://chalkline.com.au/compliance/as-nzs-1393): AS/NZS 1393:1996 (R2016) is the dimensional standard for M6 to M20 metric coach screws with ISO hexagon heads in Australia and NZ. Specs, ma
- [AS/NZS 1604: timber preservative treatment standard](https://chalkline.com.au/compliance/as-nzs-1604): AS/NZS 1604 is the timber preservative-treatment standard. H1 through H6 hazard classes set chemical type and retention for each exposure: C
- [AS/NZS 2208 (safety glazing): Grade A and Grade B test classification](https://chalkline.com.au/compliance/as-nzs-2208): AS/NZS 2208 is the test standard for safety glazing materials in Australian buildings. Defines Grade A (toughened, laminated) and Grade B (w
- [AS/NZS 2589:2017: gypsum linings, application and finishing](https://chalkline.com.au/compliance/as-nzs-2589): AS/NZS 2589:2017 governs plasterboard application and finishing on Australian residential builds. Finish levels, fixing tolerances, defect c
- [AS/NZS 2865: the confined spaces standard](https://chalkline.com.au/compliance/as-nzs-2865): AS 2865-2009 (commonly AS/NZS 2865) is the standard for safe work in confined spaces: risk assessment, entry permits, atmosphere, isolation,
- [AS/NZS 2904 (DPC and flashings): the product spec under every brick wall](https://chalkline.com.au/compliance/as-nzs-2904-dpc-flashings): AS/NZS 2904 sets the materials and durability classes for damp-proof courses and flashings in masonry walls. Five material classes; NCC ABCB
- [AS/NZS 2908.2: the fibre cement flat sheet product standard](https://chalkline.com.au/compliance/as-nzs-2908): AS/NZS 2908.2 is the product standard for fibre cement flat sheets, splitting them into Type A (external) and Type B (internal). What it cov
- [AS/NZS 3000 Wiring Rules: what residential builders need to know](https://chalkline.com.au/compliance/as-nzs-3000): AS/NZS 3000:2018 is the binding wiring standard for every Australian home. What residential builders need to know about RCDs, switchboards a
- [AS/NZS 3500: Plumbing and drainage standard for residential builders](https://chalkline.com.au/compliance/as-3500): AS/NZS 3500 is Australia's plumbing and drainage standard. Parts 1-4 cover water, sanitary, stormwater and heated water. NCC Volume 3 calls 
- [AS/NZS 4455: masonry units, pavers, flags, and segmental retaining wall units](https://chalkline.com.au/compliance/as-nzs-4455): AS/NZS 4455 is the AU/NZ standard for masonry units. Sets the 230x110x76 mm work size, exposure/general/protected durability grades, and dim
- [AS/NZS 4600 (cold-formed steel): the design code behind steel framing](https://chalkline.com.au/compliance/as-nzs-4600-cold-formed-steel): AS/NZS 4600:2018 is the design standard for cold-formed steel structures: residential steel frames, trusses, purlins. Distinct from AS 4100 
- [AS/NZS 4671: steel for the reinforcement of concrete](https://chalkline.com.au/compliance/as-nzs-4671): AS/NZS 4671:2019 sets grades, test methods, and ID markings for reinforcing steel in concrete. Called up by AS 3600 and the NCC Housing Prov
- [AS/NZS 4680: hot-dip galvanised coatings on fabricated ferrous articles](https://chalkline.com.au/compliance/as-nzs-4680): AS/NZS 4680:2025 sets the coating thickness, mass, and quality requirements for hot-dip galvanised coatings on fabricated ferrous articles i
- [AS/NZS 4858: the wet-area membrane product standard](https://chalkline.com.au/compliance/as-4858): AS/NZS 4858:2004 is the product standard a wet-area waterproofing membrane must meet. It classifies membranes by elasticity, separate from A
- [AS/NZS 4859 (Thermal insulation materials): the spec under every R-value](https://chalkline.com.au/compliance/as-nzs-4859): AS/NZS 4859 sets the rules for declared R-value, density, emittance, and fire performance of insulation in AU/NZ. Pair with AS 3999 for inst
- [BCA vs PCA: which NCC volume applies to your project?](https://chalkline.com.au/compliance/ncc-structure-bca-vs-pca): BCA vs PCA: the BCA covers building work (Volumes One and Two), the PCA covers plumbing and drainage (Volume Three). Decision table by build
- [BIF Act 2017 (Qld): Queensland's payment-and-trust regime for builders](https://chalkline.com.au/compliance/building-industry-fairness-act-qld): Qld Building Industry Fairness (Security of Payment) Act 2017: payment claims, adjudication, project trust accounts (private $10m+ current; 
- [Building Act 2004 (ACT): the residential builder's licensing law](https://chalkline.com.au/compliance/building-act-2004-act): ACT Building Act 2004: builder licensing via Construction Occupations Registrar, residential warranty insurance ($85,000 / 5 years), contrac
- [Building fire separation in Class 1 residential: the construction sequence](https://chalkline.com.au/compliance/ncc-fire-separation-in-residential): How to frame, line, and inspect fire-rated walls in Class 1a residential: boundary walls, separating walls between dwellings, and garage-to-
- [Building Work Contractors Act 1995 (SA): what the Act establishes](https://chalkline.com.au/compliance/building-work-contractors-act-sa): The Building Work Contractors Act 1995 (SA) is the statute behind CBS builder licensing, the two-credential model, statutory warranties and 
- [Construction Contracts (Security of Payments) Act 2004 (NT)](https://chalkline.com.au/compliance/construction-contracts-sop-act-nt): NT Construction Contracts (Security of Payments) Act 2004 follows the West Coast SOP model: 28 days to pay, 14 days dispute notice, 65 worki
- [DBP Act 2020 (NSW): the post-Opal Tower regulation NSW builders work under](https://chalkline.com.au/compliance/design-building-practitioners-act-2020-nsw): NSW Design and Building Practitioners Act 2020: post-Opal Tower duty of care, registration, declared designs, mandatory PI insurance from 1 
- [Design and Building Practitioners Act (NSW)](https://chalkline.com.au/compliance/design-and-building-practitioners-act): NSW DBP Act 2020: registration, compliance declarations, regulated design lodgement, statutory duty of care for Class 2/3/9c. PI insurance m
- [Design Principle pathway (WA R-Codes)](https://chalkline.com.au/compliance/design-principle-pathway): The WA R-Codes Design Principle pathway lets a proposal missing Deemed-to-Comply still get approval by arguing the design meets the underlyi
- [Domestic Building Contracts Act 1995 (Vic)](https://chalkline.com.au/compliance/domestic-building-contracts-act): Vic DBCA 1995 governs residential building contracts: written-contract threshold, 5-day cooling-off, deposit limits, prohibited cost-plus cl
- [EP&A Act 1979 (NSW): the planning law every NSW builder works under](https://chalkline.com.au/compliance/environmental-planning-assessment-act-1979-nsw): NSW residential builds run under the EP&A Act 1979: DA or CDC consent, CC before work, critical stage inspections, OC at the end. Parts 4, 6
- [Federal Code of Practice for Building and Construction: what it was, what replaced it, and what applies now](https://chalkline.com.au/compliance/federal-code-of-conduct): The federal Building Code 2016 was repealed in December 2022. What replaced it, what the Federal Safety Commissioner does, and how it affect
- [Heritage Act 1977 (NSW)](https://chalkline.com.au/compliance/heritage-act-1977-nsw): NSW Heritage Act 1977 establishes the State Heritage Register, Heritage Council of NSW, and Section 60 works approval regime. Turns SHR site
- [Heritage Act 2017 (Vic)](https://chalkline.com.au/compliance/heritage-act-2017-vic): Vic Heritage Act 2017 establishes the VHR and permit regime. State-listed places need both a Heritage Victoria permit AND a council planning
- [Home Building Act 1989 (NSW): the residential builder's licensing law](https://chalkline.com.au/compliance/home-building-act-1989-nsw): NSW Home Building Act 1989: residential builder licensing, mandatory contract Schedule 2 terms, statutory warranties, HBCF insurance, unlice
- [Housing SEPP 2021 (NSW): the umbrella state planning policy](https://chalkline.com.au/compliance/housing-sepp): The NSW Housing SEPP 2021 is the state-level housing policy: secondary dwellings, boarding houses, seniors, affordable housing, and the 2024
- [How to read AS 1684 span tables: a step-by-step guide for builders and chippies](https://chalkline.com.au/compliance/as-1684-timber-framing): Step-by-step process for reading AS 1684.2 span tables on site. Wind class, stress grade, load width, spacing, and the roof-down sequence fo
- [NASH Standard: Steel Framed Construction in Bushfire Areas](https://chalkline.com.au/compliance/nash-bushfire-standard): The NASH bushfire standard (NS300) is an NCC H7D4 deemed-to-satisfy path for steel-framed homes in bushfire areas, an alternative to AS 3959
- [NCC 2022 Volume Two: how to read and use the residential code](https://chalkline.com.au/compliance/ncc-2022-vol-2-overview): NCC 2022 Volume Two covers every Class 1 and 10 build in Australia. Learn the two-document system, Section H parts, DTS vs Performance Solut
- [NCC 2022 Volume Two: what's in it for residential builders](https://chalkline.com.au/compliance/ncc-2022-vol-2): What NCC 2022 Volume Two actually requires for Aussie houses (Class 1 and 10): Section H structure, 7-star energy, livable housing, state ad
- [NCC 2022 waterproofing requirements: what Class 1 and 10 buildings must meet](https://chalkline.com.au/compliance/ncc-waterproofing): NCC 2022 waterproofing requirements for Class 1 and 10 buildings. H4P1 performance requirement, H4D2/H4D3 DTS pathways, AS 3740 vs Housing P
- [NCC 2022: ventilation and drainage requirements for Class 1 buildings](https://chalkline.com.au/compliance/ncc-ventilation-drainage): NCC 2022 ventilation and drainage requirements for Class 1 houses. H2, H4, Housing Provisions Parts 3.3, 6.2, 7.4, 10.6 explained for reside
- [NCC building classes: what each class means for your project](https://chalkline.com.au/compliance/ncc-building-classes): Every NCC building class from Class 1a to 10c: what each class covers, which NCC volume applies, and the residential edge cases that trip up
- [NCC bushfire requirements and BAL ratings: what builders need to know](https://chalkline.com.au/compliance/ncc-bushfire-bal): BAL ratings explained for Australian builders: six levels (LOW to FZ), construction cost premiums, who assesses, and what NCC 2022 H7 actual
- [NCC bushfire requirements: the regulatory framework for all building classes](https://chalkline.com.au/compliance/ncc-bushfire-requirements): How NCC bushfire requirements work for Class 1 to 9 buildings: Vol 1 vs Vol 2, DTS vs Performance Solution, planning triggers, and state var
- [NCC energy efficiency for residential buildings: Part H6, Section J, and BASIX](https://chalkline.com.au/compliance/ncc-energy-efficiency): NCC 2022 Part H6: 7-star NatHERS, Whole-of-Home rating 60, BASIX for NSW, Section J for Class 2, glazing and building fabric requirements ex
- [NCC fire separation: what residential builders must meet](https://chalkline.com.au/compliance/ncc-fire-separation): NCC 2022 Part H3 fire separation for houses: external walls, separating walls between dwellings, garage separation, smoke alarms. FRL requir
- [NCC H8 Livable Housing Design: how to comply with the silver-level requirements](https://chalkline.com.au/compliance/ncc-livable-housing-silver): NCC 2022 Part H8 sets mandatory livable housing silver provisions for new Class 1a homes. Specs: door widths, hobless shower, access path, w
- [NCC sound insulation: Class 1 separating walls](https://chalkline.com.au/compliance/ncc-sound-insulation): NCC 2022 sound insulation requirements for Class 1 houses and townhouses: Rw+Ctr 50, acceptable constructions, flanking failures, and what c
- [NCC sound insulation: Class 2 apartments](https://chalkline.com.au/compliance/ncc-sound-insulation-in-residential): NCC 2022 sound insulation for Class 2 apartments: Rw+Ctr 50 walls, Ln,w 62 floors, DnT,w+Ctr 45 field test. Part F7 requirements explained f
- [NCC stair geometry: riser, going and flight dimensions for Class 1 homes](https://chalkline.com.au/compliance/ncc-stairs): NCC 2022 stair geometry for residential: riser 115-190 mm, going 240-355 mm, max 18 risers per flight, uniformity tolerances, landing rules 
- [NCC stairs, balustrades and handrails: Part H5 explained](https://chalkline.com.au/compliance/ncc-stairs-balustrades): NCC 2022 Part H5 stair and balustrade requirements for Class 1 homes: riser heights, 1m barrier rule, 125mm sphere test, handrail heights an
- [NCC structure: BCA, PCA, volumes and building classes explained](https://chalkline.com.au/compliance/ncc-structure-bca-pca): How the NCC is structured: BCA vs PCA, Volumes One to Three, and building classes 1 to 10. What each volume governs and where residential bu
- [NCC version transitions: which edition applies to your project](https://chalkline.com.au/compliance/ncc-version-transition): NCC 2019 vs 2022 vs 2025 adoption dates by state, which DA or CC lodgement date locks your version, and what the 7-star energy and EV provis
- [NSW building licence: classes, qualifications, thresholds and what they mean on site](https://chalkline.com.au/compliance/nsw-licensing): NSW building contractor licence classes, qualification routes, current fees, owner-builder thresholds and HBCF trigger. Under the Home Build
- [NT building practitioner registration: classes, qualifications, fees and what changes in 2025](https://chalkline.com.au/compliance/nt-bpb-licensing): NT BPB registration: residential and commercial classes, Certificate IV, $50k net assets, fidelity fund, fees and the April 2025 commercial 
- [Occupational Licensing Act 2005 (TAS): what the Act establishes](https://chalkline.com.au/compliance/occupational-licensing-act-tas): The Occupational Licensing Act 2005 (TAS) is the statute behind CBOS builder licensing: four sub-classes, mandatory CPD, and licence terms s
- [OHS Act 2004 (Victoria)](https://chalkline.com.au/compliance/ohs-act-2004-vic): Vic OHS Act 2004 is the state regime, distinct from the harmonised WHS Act. Uses employer/employee terminology. Key sections: s21, s23, s32,
- [OHS Regulations 2017 (Vic)](https://chalkline.com.au/compliance/ohs-regulations-2017-vic): Vic OHS Reg 2017 is subordinate legislation under the OHS Act 2004 (Vic). Reg 322 lists 19 HRCW categories (one more than the national model
- [Planning, Development and Infrastructure Act 2016 (SA)](https://chalkline.com.au/compliance/pdi-act-2016): South Australia's foundational planning statute. Establishes the Planning and Design Code, assessment pathways, building consent regime, and
- [Plumbing and Drainage Act 2011 (NSW)](https://chalkline.com.au/compliance/plumbing-and-drainage-act-nsw): The NSW Plumbing and Drainage Act 2011 regulates plumbing, drainage, and gasfitting work and licensing. The Notice of Work, Certificate of C
- [Plumbing Code of Australia (PCA): NCC Volume Three](https://chalkline.com.au/compliance/plumbing-code-of-australia): The Plumbing Code of Australia is NCC Volume Three, the national plumbing and drainage code. It calls up the AS/NZS 3500 series as the deeme
- [QLD QBCC licensing: builder's licence requirements in Queensland](https://chalkline.com.au/compliance/qld-qbcc-licensing): QBCC builder licensing in Queensland: who needs a licence, Minimum Financial Requirements, renewal fees, and what happens when a licence lap
- [Queensland Development Code (QDC)](https://chalkline.com.au/compliance/queensland-development-code): The Queensland Development Code (QDC) layers Qld-specific building standards over the NCC: siting, energy, and more. Where they conflict, th
- [ResCode (Victoria residential design provisions)](https://chalkline.com.au/compliance/rescode): ResCode is Vic's residential design standard, embedded as Clauses 54-55 in every planning scheme. Sets siting, setbacks, overlooking, amenit
- [SA builder licence: CBS classes, qualifications, fees and indemnity insurance](https://chalkline.com.au/compliance/sa-cbs-licensing): South Australia builder licence: CBS contractor and supervisor registration, classes, qualifications, fees, indemnity insurance and contract
- [SOP Act 1999 (NSW): the cashflow law every NSW builder needs to know](https://chalkline.com.au/compliance/security-of-payment-act-1999-nsw): NSW Security of Payment Act 1999: payment claims, fast-track adjudication, retention trust, 2021 owner-occupier inclusion, 2024 unlicensed-b
- [SPP 7.3 R-Codes (WA): the statutory residential design instrument](https://chalkline.com.au/compliance/spp-7-3-r-codes): WA State Planning Policy 7.3 (R-Codes) is the statutory residential design instrument. Volume 1 covers houses to R60; Volume 2 covers R80+ a
- [TAS builder licence: CBOS classes, qualifications, fees and CPD](https://chalkline.com.au/compliance/tas-cbos-licensing): Tasmania builder licence classes, qualification routes, current fees, CPD requirements and owner-builder rules under CBOS and the Occupation
- [VIC builder licensing: VBA/BPC registration, renewal, fees, lapse rules](https://chalkline.com.au/compliance/vic-licensing): Victorian builder licensing (called 'registration' under the Building Act 1993): renewal, 2025-26 fees, DBI eligibility, lapse penalties und
- [WA builder registration: Building Services Board classes, fees and obligations](https://chalkline.com.au/compliance/wa-bsa-licensing): WA Building Services Board: practitioner vs contractor, qualification sets, fees, home indemnity insurance, owner-builder approval and $25k 
- [WHS Regulation 2017 (NSW)](https://chalkline.com.au/compliance/whs-regulation-2017-nsw): NSW WHS Reg 2017 sits under the WHS Act 2011. Sets principal-contractor threshold ($250k), WHS Management Plan, SWMS, induction, white card 
- [Wind uplift: why roofs lift off and how the load path holds them down](https://chalkline.com.au/compliance/wind-uplift): Wind uplift is the net upward force wind puts on a roof. Why a light timber roof is at risk, what increases uplift, and how the AS 1684 tie-

## Planning and zoning

- [Aboriginal cultural heritage in residential planning: AU state regimes](https://chalkline.com.au/planning/aboriginal-cultural-heritage): How Aboriginal cultural heritage rules work in AU residential planning: NSW AHIMS, VIC CHMPs, QLD ACH Act, WA s.18 consents, state-by-state 
- [Acid sulfate soil in NSW: how to identify, assess, and manage it before you dig](https://chalkline.com.au/planning/acid-sulfate-soil): NSW acid sulfate soil classes 1-5 explained: what triggers a management plan, how Class 1/2 blocks CDC, and what your ASSMP must cover.
- [ACT Territory Plan structure: Planning Act 2023, four tracks, no LGAs](https://chalkline.com.au/planning/act-territory-plan): How the ACT planning regime works: Planning Act 2023, Territory Plan, residential zones RZ1-RZ5, four assessment tracks. No LGAs, no local i
- [Airport noise contours: ANEF, ANEC, N-contours and AS 2021 for residential](https://chalkline.com.au/planning/airport-noise-contours): Airport noise contours for AU residential planning: ANEF vs ANEC vs N-contours, AS 2021 acoustic insulation by zone, where overlays apply, b
- [BAL ratings explained: design implications by bushfire band](https://chalkline.com.au/planning/bal-ratings-explained): What each BAL rating means for residential design in AU: BAL-LOW, BAL-12.5, BAL-19, BAL-29, BAL-40, BAL-FZ. Cost step-up + builder implicati
- [Building height controls: HOB, eaves height, stepping rules and articulation zones](https://chalkline.com.au/planning/building-height-controls): How residential building height is measured in AU: HOB vs eaves height, sloping-site stepping, articulation zones, attic exceptions, state-b
- [Bushfire prone area mapping: how to read the maps before you design](https://chalkline.com.au/planning/bushfire-prone-area-mapping): Check bushfire prone area maps before design: NSW RFS, VicPlan, QLD, WA DFES, SA, TAS, ACT. Section 10.7 certificates and what triggers a BA
- [Class 1a CDC eligibility checklist NSW](https://chalkline.com.au/planning/class-1a-cdc-checklist-nsw): NSW Class 1a CDC eligibility: zone, lot size, BAL, heritage, acid sulfate, flood, and Housing Code development standards. Checklist with cla
- [Conditions of consent: how to read a development approval](https://chalkline.com.au/planning/conditions-of-consent-how-to-read): How to read a development consent: standard vs deferred commencement vs special conditions, timing categories, common types, NSW/VIC/QLD var
- [Contaminated land: assessment, disclosure and remediation for AU residential](https://chalkline.com.au/planning/contaminated-land): How contaminated land rules work in AU residential: SEPP Resilience and Hazards 2021, NEPM Stage 1 vs 2, EPA notices, title disclosure, reme
- [DA exhibition and notification rules NSW: who, when, how long](https://chalkline.com.au/planning/da-exhibition-and-notification-rules-nsw): NSW DA exhibition and notification: 14-day standard, 28-day designated/advertised, council DCP matrices, signage requirements, Pattern Book 
- [DA objections and submissions: valid grounds + how to respond](https://chalkline.com.au/planning/objections-and-submissions): How DA objections and submissions work in AU: valid planning grounds, how council weights submissions, how to draft an objection, how to res
- [DA vs CDC vs CC vs BIC: pick the right pathway for your residential project](https://chalkline.com.au/planning/da-vs-cdc-vs-cc-vs-bic): Pick the right NSW residential pathway: DA vs CDC vs Construction Certificate vs Building Information Certificate. Decision tree plus cross-
- [DCPs (Development Control Plans) NSW: how to read them for a residential project](https://chalkline.com.au/planning/dcps): How NSW Development Control Plans work: setbacks, landscaping, solar access, car parking, and how to depart from DCP controls with a well-ar
- [Deemed refusal timeframes: when an unanswered DA becomes refusable in AU](https://chalkline.com.au/planning/deemed-refusal-timeframes-au): When an unanswered DA can be appealed as deemed refusal: NSW 40d/60d/90d, VIC 60d, QLD code-assessable, WA 60d, SA P&D Code, clock pause rul
- [Easements and restrictive covenants on residential title](https://chalkline.com.au/planning/easements-and-covenants): Easements and restrictive covenants on NSW residential title: types, building over easements, how to remove covenants, and dispute paths exp
- [Flood-prone area: what it means on a build site in NSW](https://chalkline.com.au/planning/flood-prone-area): Flood-prone land in NSW: flood planning level, FPL, freeboard, CDC vs DA, Section 10.7 disclosure, DCP floor levels explained for builders.
- [Floor Space Ratio (FSR): how it is calculated, worked examples and variation pathways](https://chalkline.com.au/planning/floor-space-ratio): How Floor Space Ratio (FSR) works in Australian planning: the formula, what counts as GFA, worked examples, NSW clause 4.6 variations, state
- [Getting a DA in Queensland, step-by-step](https://chalkline.com.au/planning/da-process-qld): How to get a development approval in QLD: MCU, IDAS stages, SARA referrals, building approval under Building Act 1975, private certifier hol
- [Getting a planning permit in VIC, step-by-step](https://chalkline.com.au/planning/da-process-vic): How to get a planning permit and building permit in Victoria: VicSmart 10-day path, standard council process, ResCode, VBA surveyor role, Cl
- [Getting development approval in SA, step-by-step](https://chalkline.com.au/planning/da-process-sa): Development approval in SA: PlanSA portal, Code Assessed vs Performance Assessed, building rules consent, certifier, certificate of occupanc
- [Heritage overlays and heritage conservation areas: what builders need to know](https://chalkline.com.au/planning/heritage-overlays): Heritage overlays constrain alterations, demolition, and additions. Covers NSW, VIC, and QLD requirements, CMP triggers, and what to do on a
- [How to read a plan of subdivision (DP, PS, strata plan) in AU](https://chalkline.com.au/planning/plan-of-subdivision-reading): How to read a registered plan of subdivision across AU: lot boundaries, easements, covenants, common property, state terminology, builder go
- [Landscaped area and deep soil zones: AU residential planning controls](https://chalkline.com.au/planning/landscaped-area-and-deep-soil): How landscaped area and deep soil zone controls work in AU residential: NSW ADG, council DCPs, tree canopy credits, podium-deck traps, state
- [Landslip and steep-slope construction overlays in AU residential](https://chalkline.com.au/planning/landslip-and-steep-slope): How landslip risk and steep-slope overlays affect AU residential: 18-degree trigger, geotech reports, AGS 2007 framework, cost impacts, coun
- [LEPs (Local Environmental Plans) NSW: how to read them for a residential project](https://chalkline.com.au/planning/leps-nsw): How NSW Local Environmental Plans work: Standard Instrument zoning (R1-R5), FSR and height controls, SEPP hierarchy, and how to look up your
- [NSW Complying Development Certificate (CDC): step-by-step](https://chalkline.com.au/planning/cdc-nsw): How to get a CDC in NSW: eligibility, Housing Code standards, certifier engagement, mandatory inspections, OC. SEPP Codes 2008 and EP&A Act 
- [NSW L&E Court Class 1 appeals: when to appeal a DA refusal](https://chalkline.com.au/planning/land-and-environment-court-appeals-nsw): NSW Land and Environment Court Class 1 appeals: 6-month filing window, $30-120k cost range, conciliation conferences, success rates, builder
- [NSW planning panels: LPP, RPP, SDRPP, IPC explained](https://chalkline.com.au/planning/planning-panels-explained): NSW planning panels explained: LPP, RPP, SDRPP, IPC, IHAP. When each replaces council as decision-maker. Hearing procedure. Builder prep tip
- [NSW s4.55 modifications: pick the right modification pathway](https://chalkline.com.au/planning/s4-55-modifications-nsw): NSW s4.55 modifications: s4.55(1) clerical, s4.55(1A) minimal impact, s4.55(2) substantially same. Timeframes, fees, when to use each, build
- [NT Planning Scheme structure: Planning Act 1999, NTPS 2020, no council schemes](https://chalkline.com.au/planning/nt-planning-scheme): How NT's planning regime works: Planning Act 1999, NT Planning Scheme 2020, residential zones, four assessment categories. No council scheme
- [Permitted uses and zoning: how to read a use table in any AU planning instrument](https://chalkline.com.au/planning/permitted-uses-and-zoning): How zoning use tables work across NSW, VIC, QLD, WA and SA: permitted vs prohibited vs assessable, ancillary uses, characterisation. Read an
- [Planning and building approvals in WA, step-by-step](https://chalkline.com.au/planning/da-process-wa): How to get development approval and a building permit in WA. Planning and Development Act 2005, Building Act 2011, certified vs uncertified 
- [Pre-DA meetings: when to book, what to bring, how to use the output](https://chalkline.com.au/planning/pre-da-meetings): When a pre-DA meeting with council is worth booking, what to bring, what to expect, how to use the output to cut conditions and RFIs. NSW an
- [Privacy and sight lines: visual and acoustic privacy in AU residential](https://chalkline.com.au/planning/privacy-and-sight-lines): How visual + acoustic privacy rules work in AU residential: 9m sight line rule, ADG, ResCode A15/B22, screen specs, balcony privacy, builder
- [QLD planning scheme amendments: Minor vs Major + how to request](https://chalkline.com.au/planning/qld-planning-scheme-amendments): QLD planning scheme amendments: Minor vs Major distinction, state interest consultation, public notification, how to request as developer. 1
- [QLD seller disclosure: Form 2 + prescribed certificates under Property Law Act 2023](https://chalkline.com.au/planning/qld-seller-disclosure): QLD seller disclosure under Property Law Act 2023: Form 2 statement, prescribed certificates, buyer termination rights, gotchas for builders
- [Residential lot due diligence: step-by-step checklist for builders + buyers](https://chalkline.com.au/planning/due-diligence-checklist-residential-lot): Step-by-step pre-purchase due diligence checklist for AU residential lots: planning cert, title, plan, zoning, overlays, easements, NCC trig
- [Residential setbacks: front, side, rear, corner lots, encroachments](https://chalkline.com.au/planning/setbacks): How residential setbacks work in AU: front/side/rear minimums, corner lot rules, articulation zones, garage setbacks, encroachments. State-b
- [Residential subdivision controls: min lot size, frontage, battle-axe lots](https://chalkline.com.au/planning/subdivision-controls-residential): How residential subdivision works in AU: minimum lot size by zone, frontage, battle-axe lots, hammerhead access, easements, state-by-state.
- [Riparian and waterway buffers in AU residential planning](https://chalkline.com.au/planning/riparian-and-waterway-buffer): How riparian and waterway buffers work in AU residential: NSW CAA, QLD vegetation codes, VIC waterway buffers, foreshore building lines, got
- [Salinity, sodic, dispersive and reactive soils: AU residential primer](https://chalkline.com.au/planning/salinity-and-acid-soil-extended): Soil-condition overlays for AU residential: salinity, sodic, dispersive, reactive soils. AS 2870 classifications, geotech triggers, state ri
- [Secondary dwellings and dual occupancy: granny flats, DPUs, duplexes in AU](https://chalkline.com.au/planning/secondary-dwellings-and-dual-occupancy): How granny flats, DPUs and dual occupancy work in AU: Housing SEPP 2021, NSW Low and Mid-Rise Reforms, VIC DPU rules, WA ancillary dwellings
- [Section 10.7 planning certificates NSW: what they reveal and how to read them](https://chalkline.com.au/planning/section-10-7-certificates-nsw): What NSW Section 10.7 planning certificates reveal: zoning, heritage, flood, bushfire, contributions and more. 10.7(2) vs 10.7(5), fees, and
- [SEPPs in NSW: what they are and when they affect your project](https://chalkline.com.au/planning/sepps-nsw): NSW State Environmental Planning Policies for builders: SEPP hierarchy, 11 consolidated SEPPs, Housing Code, granny flat rules, and low-rise
- [Site coverage and hard surface: residential limits, stormwater triggers](https://chalkline.com.au/planning/site-coverage-and-hard-surface): How site coverage and hard surface controls work in AU residential planning: definitions, OSD stormwater triggers, permeable paving credits,
- [Solar access and overshadowing: residential planning controls in AU](https://chalkline.com.au/planning/solar-access-and-overshadowing): How solar access and overshadowing rules work in AU residential: ADG, ResCode, council DCPs, shadow diagrams, neighbour protection, gotchas.
- [Submitting a DA in NSW, step-by-step](https://chalkline.com.au/planning/da-process-nsw): How to lodge a Development Application in NSW: pre-DA, NSW Planning Portal lodgement, neighbour notification, RFIs, determination. EP&A Act 
- [TAS Tasmanian Planning Scheme structure: LUPAA, SPPs, LPSs, four assessment categories](https://chalkline.com.au/planning/tas-planning-schemes): How Tasmania's planning regime works: LUPAA, the Tasmanian Planning Scheme, State Planning Provisions, Local Provisions Schedules, four asse
- [Title search basics: how to read a title across AU jurisdictions](https://chalkline.com.au/planning/title-search-basics-au): How to read a title search across AU: registered proprietor, encumbrances, easements, covenants, caveats. State-by-state registries + costs.
- [VIC ResCode: Clause 54 and Clause 55 deep dive after 2025 reforms](https://chalkline.com.au/planning/vic-rescode): VIC ResCode Clauses 54 (single) and 55 (multi) explained: standards + objectives, 2025 deemed-to-comply reforms (VC267 + VC282), builder got
- [VIC s32 vendor statement: pre-purchase planning disclosure](https://chalkline.com.au/planning/section-32-statement-vic): VIC section 32 vendor statement explained: required disclosures, 14-day rescission rights, planning + easement + GAIC traps for builders and

## Approvals and certification

- [Building permit in SA: see the full DA and consent process](https://chalkline.com.au/approvals/building-permit-sa): Building permit in South Australia explained. SA uses a combined development approval system. Full process covered in the DA process SA guid
- [Building permit QLD: what you actually need](https://chalkline.com.au/approvals/building-permit-qld): QLD calls it a Building Approval, not a building permit. Here is what you need, who issues it, and where to find the full step-by-step guide
- [Building permits in VIC: what you need to know](https://chalkline.com.au/approvals/building-permit-vic): Overview of Victoria's building permit requirements for residential work. Covers when a permit is needed, who issues it, and where to get th
- [Building permits in WA](https://chalkline.com.au/approvals/building-permit-wa): WA building permit essentials: certified vs uncertified path, fees, timeframes, and the full step-by-step process under the Building Act 201
- [How to obtain an Occupation Certificate: NSW in detail, interstate at a glance](https://chalkline.com.au/approvals/occupation-certificates): Getting an Occupation Certificate in NSW: what must be done before your PCA can issue it, staged OC rules, interstate equivalents, and the 6
- [Owner-builder permits: NSW, VIC and QLD requirements](https://chalkline.com.au/approvals/owner-builder-permits): Owner-builder permit thresholds, course requirements and on-sell obligations in NSW ($10k+), VIC ($16k+) and QLD ($11k+). HBCF/DBI insurance
- [Private vs council certifiers: how to choose and what each one owes you](https://chalkline.com.au/approvals/private-vs-council-certifiers): Private vs council certifiers across NSW, VIC, QLD, SA and WA: fees, turnaround, conflict-of-interest rules, who bears liability for a misse
- [Stop work orders on building sites: show-cause notices and rectification orders](https://chalkline.com.au/approvals/stop-work-orders): Stop work orders, show-cause notices and rectification orders explained for NSW, VIC, QLD and WA. Who issues them, grounds, penalties, and h

## Contracts and commercial

- [ABIC contracts: a builder's guide to Simple Works, Basic Works, and Major Works](https://chalkline.com.au/contracts/abic-contracts-overview): ABIC contracts are architect-administered building contracts for residential and commercial work. Compare SW-2018, BW-2018, MW-2018 and when
- [Adjudication under SOPA: the full process from payment claim to enforcement](https://chalkline.com.au/contracts/adjudication-process): NSW SOPA adjudication: payment claim to enforcement in ~40 business days. Timelines, ANA selection, adjudicator fees, and what if the respon
- [Allowances, PC items and provisional sums: what each one means in your contract](https://chalkline.com.au/contracts/allowances-vs-pc-vs-ps): Allowance, prime cost item and provisional sum: three contract terms builders get wrong. What each means, how margin works, and what NSW and
- [Design and construct (D&C): a builder's risk primer](https://chalkline.com.au/contracts/design-and-construct): Design-and-construct is the model where the builder owns the design risk. PI insurance becomes mandatory in NSW from 1 July 2026. State-by-s
- [Domestic Building Insurance VIC: builder's guide to DBI](https://chalkline.com.au/contracts/dbi-vic): Domestic Building Insurance VIC: mandatory over $16,000. Covers 6 years structural defects. BPC sole provider; first-resort scheme from July
- [Extensions of Time (EOTs): how to claim and protect your programme](https://chalkline.com.au/contracts/eots-extensions-of-time): How to claim an EOT under HIA, MBA and ABIC contracts: eligible grounds, notice deadlines, documentation, and the link to liquidated damages
- [HIA contracts: the full suite explained](https://chalkline.com.au/contracts/hia-contracts-overview): Complete guide to the HIA residential contract suite: fixed price, cost-plus, state editions (NSW, VIC, QLD, WA, SA), Contracts Online acces
- [HIA cost-plus contract: how it works and when to use it](https://chalkline.com.au/contracts/hia-cost-plus): How the HIA cost-plus contract works: builder margin, progress claims, NSW and VIC restrictions, and when cost-plus beats fixed-price for re
- [HIA fixed-price contract: builder's guide](https://chalkline.com.au/contracts/hia-fixed-price): HIA fixed-price contract for Aussie builders: lump-sum mechanics, PC/PS items, cooling-off periods, deposit limits, mandatory clauses (NSW, 
- [Home Building Compensation Fund NSW: builder's guide to HBCF](https://chalkline.com.au/contracts/hbcf-nsw): NSW HBCF: mandatory home warranty for residential work over $20,000. Covers 6 years (major defects) and 2 years if builder becomes insolvent
- [Liquidated damages in building contracts: Australia guide](https://chalkline.com.au/contracts/liquidated-damages): How liquidated damages work in Australian building contracts: penalty doctrine, HIA defaults, calculating a genuine rate, and Security of Pa
- [MBA contracts: Master Builders residential contract suite explained](https://chalkline.com.au/contracts/mba-contracts-overview): Plain-English guide to Master Builders Australia residential contracts: BC4 lump sum, Cost Plus, renovation, ABIC. State editions, key claus
- [Novation of design consultants to the builder](https://chalkline.com.au/contracts/novation-design): Novated design: the architect or engineer engaged by the client gets reassigned to the builder at contract execution. Design freeze, change 
- [Owner-builder vs licensed builder: contract and legal differences in NSW](https://chalkline.com.au/contracts/owner-builder-vs-licensed-contract): NSW owner-builder permits, HBCF insurance exclusion, statutory warranties, and how contract obligations differ from a licensed builder under
- [Prime cost items: supply allowances in residential building contracts](https://chalkline.com.au/contracts/pc-items): Prime cost items cover supply only, not installation. Know the margin rule, reconciliation timing, and how VIC and QLD impose hard disclosur
- [Progress claims: how to submit, defend, and enforce payment](https://chalkline.com.au/contracts/progress-claims): How Australian progress claims work: HIA stages, payment schedule deadlines, NSW SOPA adjudication timelines, and grounds for withholding pa
- [Provisional sum items: scope-undefined work in residential building contracts](https://chalkline.com.au/contracts/ps-items): Provisional sums cover scope-undefined work like earthworks and drainage. Know the margin rule, QLD invoice obligation, VIC penalty, and how
- [QBCC Home Warranty Insurance Queensland: builder's guide to the QHWS](https://chalkline.com.au/contracts/qbcc-home-warranty-qld): QBCC Home Warranty Insurance: mandatory for residential work over $3,300 in QLD. 6 yr 6 month structural, 6-month non-structural, $200k cove
- [Reading a building contract: what to look for first](https://chalkline.com.au/contracts/reading-a-building-contract): Plain-English guide for Aussie builders on the clauses to check first in a residential building contract: payment, variations, PC/PS, EOT, L
- [Retentions clause: how it works and how to negotiate it](https://chalkline.com.au/contracts/retentions-clause): How Australian building contract retention clauses work: typical 5%, two-stage release at PC and DLP, SOP Act trust rules, and tips to negot
- [Security of Payment Act NSW: how to use it](https://chalkline.com.au/contracts/sop-nsw): NSW Security of Payment Act 1999: payment claims under s13, payment schedules under s14, adjudication under s17, and what residential builde
- [Security of Payment Act SA: builder's guide to the SA SoP Act](https://chalkline.com.au/contracts/sop-sa): SA Security of Payment Act 2009: payment claims, payment schedules, adjudication, residential exclusions, and the 2025 Crown exemption for S
- [Security of Payment Act VIC: builder's guide to the VIC SoP Act](https://chalkline.com.au/contracts/sop-vic): Victoria SoP Act 2002: payment claims, schedules, adjudication via ANAs, domestic building exclusions, and the April 2026 reforms that remov
- [Security of Payment Act WA: how to use it](https://chalkline.com.au/contracts/sop-wa): WA Security of Payment Act 2021: payment claims, payment schedules, adjudication, residential exclusions, and the retention trust scheme exp
- [Security of payment in Queensland: BIF Act guide for builders and subbies](https://chalkline.com.au/contracts/sop-qld): How the Queensland BIF Act 2017 works: payment claims, payment schedules, adjudication timelines, project trust accounts, and residential ex
- [Variations process: how to issue, price, and enforce scope changes](https://chalkline.com.au/contracts/variations-process): How to issue, price and enforce variations in Australian residential building contracts. HIA cl 18, MBA cl 14, QBCC rules, and what happens 

## Practical and on-site

- [Adjudication application: NSW SOPA practical checklist](https://chalkline.com.au/practical/adjudication-application): Builder's practical checklist for NSW SOPA adjudication applications: package contents, deadline windows, ANA selection, service requirement
- [Aluminium-frame windows: selection and installation for residential builds](https://chalkline.com.au/practical/windows-aluminium): How to select and install aluminium-frame windows on Australian residential builds: AS 2047 wind class, NCC energy rules, frame types, and c
- [Balcony waterproofing membrane: the residential install](https://chalkline.com.au/practical/balcony-membrane): How to waterproof a residential balcony under AS 4654.2 and NCC H2D8: fall, upstands, the door threshold detail, membrane selection, and wea
- [Brick veneer](https://chalkline.com.au/practical/brick-veneer): Brick veneer in Australian residential construction. See the full installation guide covering AS 3700, NCC 2022, wall ties, weep holes, and 
- [Brick veneer cladding: installation guide for residential builders](https://chalkline.com.au/practical/brick-veneer-cladding): Brick veneer cladding for Australian homes: AS 3700, NCC 2022, wall ties, weep holes, articulation joints, cavity width, DPC placement, and 
- [Bulk vs reflective insulation: how each works and when to use which](https://chalkline.com.au/practical/insulation-bulk-vs-reflective): Bulk vs reflective insulation for Aussie builders: thermal mechanism, R-Material vs R-Total, airspace rules, emittance, when reflective fail
- [Carpet floor coverings: residential installation guide](https://chalkline.com.au/practical/floor-coverings-carpet): Carpet selection and installation for Australian residential builders: ACCS grades, fibre types, underlay, smooth-edge vs direct-stick, AS 2
- [CDC application process (NSW residential)](https://chalkline.com.au/practical/cdc-application-process): CDC application step-by-step: eligibility check, BASIX, supporting docs, lodge via Planning Portal, certifier assessment in 20 business days
- [Cement render: application guide for Australian residential builders](https://chalkline.com.au/practical/cement-render): Cement render for Australian homes: three-coat vs polymer-modified, substrate prep for brick, concrete and AAC, control joints, defects and 
- [Concrete slab pour: residential sequence from pre-pour to curing](https://chalkline.com.au/practical/concrete-pour-sequence): Step-by-step concrete slab pour process for residential: pre-pour inspection, supply ordering, placement, screeding, finishing, curing. Comm
- [Conventional reinforced slab](https://chalkline.com.au/practical/conventional-reinforced): Conventional reinforced slab for Australian residential builds. Full guide covers AS 2870 site classes, beam sizing, mesh grades and hold po
- [Conventional reinforced slab: Australian residential guide](https://chalkline.com.au/practical/conventional-reinforced-slab): Conventional reinforced slab construction for Aussie builders: AS 2870 site classes, beam sizing, mesh grades, vs waffle pod, hold points, t
- [Critical stage inspection process (residential)](https://chalkline.com.au/practical/critical-stage-inspection-process): How to manage mandatory certifier inspections: book ahead, prepare to spec, give site access, get written sign-off. Failing one costs you th
- [Damp-proof courses: installation guide for residential builders](https://chalkline.com.au/practical/damp-proof-courses): How to install DPCs correctly in Australian residential masonry: NCC Housing Provisions 5.7, materials, heights, laps, flashings, weep holes
- [Decks: residential construction guide](https://chalkline.com.au/practical/decks): Australian residential deck construction: framing, materials, compliance, balustrade heights. Full guide at practical/decks-residential.
- [Defects rectification in the DLP: a builder's process](https://chalkline.com.au/practical/defects-rectification): How to manage defects during the DLP after PCI: record the list, schedule fixes, push back on owner add-ons that aren't defects, get sign-of
- [Driveways](https://chalkline.com.au/practical/driveways): Residential driveway guide for Australian builders: council crossings, concrete specs, gradient limits, drainage. See the full article.
- [Earthworks: cut and fill for residential sites](https://chalkline.com.au/practical/earthworks-cut-fill): Cut and fill earthworks for residential sites: NCC 2022 batter slopes, controlled vs uncontrolled fill, AS 3798, site classification, retain
- [External doors: selection, installation and tolerances for residential builds](https://chalkline.com.au/practical/doors-external): Solid core vs hollow core, frame materials, AS 2047 weather-tightness, NCC livable threshold rules and fire separation between garage and dw
- [Fibre cement cladding: installation guide for Australian builders](https://chalkline.com.au/practical/fibre-cement-cladding): Fibre cement cladding for Australian builders: NCC 2022 fixing, rain screen cavity, joint sealant, Scyon Linea, Stria, Axon, Cemintel, BAL r
- [First fix, rough-in and second fix: residential build sequence](https://chalkline.com.au/practical/first-fix-second-fix-sequence): Rough-in at frame stage, second fix after paint, final fix at PCI. Trade-by-trade residential build sequence, hold points, AS 3000, AS 3500,
- [Frame inspection checklist: what the certifier looks at before lining goes on](https://chalkline.com.au/practical/frame-inspection-checklist): What triggers the mandatory NSW frame inspection, what the certifier checks (bracing, tie-down, plumb, lintels, spans), and the top reasons 
- [Handover and PCI process (residential)](https://chalkline.com.au/practical/handover-pci-process): Handover and PCI: pre-completion inspection, defects list, occupation certificate, handover meeting, key transfer, retention release. Step-b
- [Insulation: where to use it and which type to choose](https://chalkline.com.au/practical/insulation-where-to-use): Ceiling, wall, and underfloor insulation for Aussie residential builders: NCC 2022 R-values by climate zone, bulk vs reflective vs composite
- [Internal doors: hollow core vs solid core, door types, hardware and install sequence](https://chalkline.com.au/practical/doors-internal): Hollow core vs HMR solid core, hinged vs cavity slider vs barn door, hardware grades, NCC fire door rules and livable housing door widths fo
- [Internal linings overview: plasterboard, fibre cement, and timber boards](https://chalkline.com.au/practical/internal-linings-overview): Which internal lining for each location? Standard, fire-rated, moisture-resistant plasterboard, fibre cement, and timber board options with 
- [Membrane flat roofing: installation guide for low-pitch residential roofs](https://chalkline.com.au/practical/membrane-flat-roofing): Membrane flat roofing for Australian residential builds: AS 4654, NCC 2022 H2D8, minimum fall, upstand heights, TPO, EPDM, modified bitumen,
- [Membrane upstand termination (flat roof, balcony)](https://chalkline.com.au/practical/membrane-upstand-termination): Membrane upstand termination is the AS 4654.2 detail: 150 mm minimum upstand, cap-flashing lap, primer compatibility. Wrong = water tracks b
- [Membranes for wet areas](https://chalkline.com.au/practical/membranes-for-wet-areas): Looking for membranes for wet areas? Full AS 3740:2021 installation guide, NCC 2022 requirements, and common holds at the canonical article.
- [Metal roofing installation: residential build sequence](https://chalkline.com.au/practical/metal-roofing-installation): Step-by-step metal roofing installation for Australian residential builders: AS 1562.1, minimum pitch, sarking, fastener patterns, wind clas
- [Ordering a soil report: cost, timing, and how to read the site class](https://chalkline.com.au/practical/site-classification-report-process): When to order a soil report, who does it, what it costs (about $500 to $1,200 ex-GST for a standard block), and how to action the AS 2870 si
- [Pad footings: construction and sizing for residential builds](https://chalkline.com.au/practical/footings-pad): Pad footings for Australian residential builds: AS 2870 sizing, site classification, N20 minimum concrete, SL72 mesh, 100 kPa bearing, when 
- [Paving (residential)](https://chalkline.com.au/practical/paving): Australian residential paving overview: sub-base, bedding sand, falls, drainage, AS 3727.1. Full guide at /practical/paving-residential.
- [Pier footings: bored piers, driven piles and screw piles for residential builds](https://chalkline.com.au/practical/footings-pier): Pier footings for Australian residential builds: bored piers, driven piles, screw piles, AS 2870 site classes H1/H2/E/P, depth to bearing st
- [Platform framing: the stacked-storey system behind most Australian homes](https://chalkline.com.au/practical/platform-framing): Platform framing builds each storey as a platform before the walls above. Why it replaced balloon framing in Australia, how it sequences, an
- [Pool fencing: AS 1926.1, NCC requirements, and state rules](https://chalkline.com.au/practical/pool-fencing): Australian pool fencing rules: AS 1926.1 barrier height, non-climbable zone, self-closing gates, NCC H7D2, plus NSW, VIC and QLD state requi
- [Practical completion handover: the on-site process](https://chalkline.com.au/practical/practical-completion-handover): How to run the PCI walk, compile the defects list, package keys and manuals, get the OC, and release retention at practical completion hando
- [Pre-pour slab inspection: what gets checked and why](https://chalkline.com.au/practical/pre-pour-slab-inspection): Pre-pour slab inspection in Australia: what the certifier checks before concrete goes in. Reo, cover, vapour barrier, formwork, hold-downs, 
- [Raft footings: construction and site classification guide for residential builds](https://chalkline.com.au/practical/footings-raft): Stiffened raft footings in Australia: AS 2870 edge beam depths by site class, internal beams, N20 concrete, SL72 mesh, DTS vs engineering pa
- [Reading a soil report: what residential builders need to know](https://chalkline.com.au/practical/reading-a-soil-report): How to read a geotechnical soil report: AS 2870 site classes A to P, borelog notation, water table, fill type, and red flags to send back to
- [Residential decks: framing, materials, and compliance](https://chalkline.com.au/practical/decks-residential): Australian residential deck guide: AS 1684 framing, balustrade heights, timber vs composite, council permit thresholds, durability classes, 
- [Residential driveways: vehicle crossings, slab specs, and surface options](https://chalkline.com.au/practical/driveways-residential): Australian residential driveway guide: council crossing permits, AS 2890.1 gradients, AS 3727.1 slab specs, concrete vs asphalt vs pavers, d
- [Residential paving: pavers, concrete, sub-base and drainage](https://chalkline.com.au/practical/paving-residential): Australian residential paving: sub-base depths, bedding sand, edge restraints, falls, drainage compliance and council approvals. AS 3727.1:2
- [Retaining walls](https://chalkline.com.au/practical/retaining-walls): Overview of residential retaining walls in Australia. See the full guide: approval thresholds, AS 4678 design, drainage, and common failure 
- [Retaining walls: residential guide](https://chalkline.com.au/practical/retaining-walls-residential): Residential retaining walls: approval height thresholds by state, AS 4678 design rules, engineer triggers, drainage requirements, and common
- [Roof flashings and sealing: residential installation guide](https://chalkline.com.au/practical/roof-flashings-and-sealing): Apron, step, valley, ridge and penetration flashings for Australian residential roofs. AS 1562.1 requirements, lap minimums, sealant rules, 
- [Roof framing: conventional (stick-framed) construction](https://chalkline.com.au/practical/roof-framing-conventional): How to frame a conventional timber roof in Australia: AS 1684.2 design, rafter sizing, ridge board vs ridge beam, hip and valley framing, wh
- [Roof framing: prefabricated trusses](https://chalkline.com.au/practical/roof-framing-trusses): How to install prefabricated nail-plated timber roof trusses in Australia: AS 4440, AS 1720.5, hip vs gable layouts, temporary bracing, hold
- [Roof tiles installation: concrete and terracotta, AS 2050](https://chalkline.com.au/practical/roof-tiles-installation): Roof tiles installation guide for Australian builders: AS 2050:2018, concrete vs terracotta, sarking, batten spacing, wind class fixing, rid
- [Site set-out and survey: residential pre-construction guide](https://chalkline.com.au/practical/site-set-out-and-survey): Site set-out for residential builds: registered surveyor scope, boundary pegs, AHD vs assumed datum, profile boards, TBM, and state-by-state
- [Skirting and architrave](https://chalkline.com.au/practical/skirting-and-architrave): Overview of skirting and architrave on Australian residential builds. Full install guide with profiles, joints, fixings and tolerances at th
- [Skirting and architrave installation: profiles, joints, fixings and tolerances](https://chalkline.com.au/practical/skirting-and-architrave-install): Profiles, mitre vs scribed joints, pre-paint vs post-paint, fixings to studs, movement gaps and defect tolerances for skirting and architrav
- [Slab on ground construction: residential build sequence](https://chalkline.com.au/practical/slab-on-ground-construction): Step-by-step slab on ground construction for Australian residential builders: site classification, AS 2870, vapour barriers, hold points, to
- [Slab on ground: residential construction guide](https://chalkline.com.au/practical/slab-on-ground): Australian residential slab on ground construction: AS 2870, NCC 2022 hold points, site classification, and step-by-step sequence.
- [Steel framing basics: light gauge steel for residential construction](https://chalkline.com.au/practical/steel-framing-basics): Light gauge steel framing for Australian residential builds: AS/NZS 4600, NASH Standard, NCC H1D6, screw patterns, thermal breaks, cyclone r
- [Stone cladding: residential installation guide for builders](https://chalkline.com.au/practical/stone-cladding): Natural vs reconstituted stone cladding for Australian homes: weight loading, adhesive vs mechanical fixing, NCC 2022, weep holes, substrate
- [Strip footings: continuous concrete footings for load-bearing walls](https://chalkline.com.au/practical/footings-strip): Strip footing dimensions, trench mesh, concrete grade, and articulation joint rules for Australian residential builders. AS 2870 and Housing
- [Temporary bracing of trusses during erection](https://chalkline.com.au/practical/temporary-bracing-trusses): Temporary bracing during truss erection per AS 4440: max 3-4 trusses unbraced, 50x25 F5/MGP10 boards at panel points, 3,000 mm max spacing. 
- [Termite barriers: residential installation guide](https://chalkline.com.au/practical/termite-barriers): Physical and chemical termite barrier systems for Australian residential builds. AS 3660.1:2014, NCC 2022 Part 3.4, Kordon, Granitgard, Home
- [The tie-down schedule: what it lists and how to read it](https://chalkline.com.au/practical/tie-down-schedule): The tie-down schedule lists every connection from roof to slab with its uplift force and required connector. How it is prepared and why a ge
- [Tie-down systems: wind uplift from roof to slab](https://chalkline.com.au/practical/tie-down): Install tie-down systems per AS 1684 for wind classes N1-N4 and C1-C3. Covers the full chain: roof anchors, straps, hold-down brackets, cycl
- [Tile floor coverings: porcelain, ceramic and natural stone installation guide](https://chalkline.com.au/practical/floor-coverings-tile): Tile floor installation guide for Australian builders: porcelain vs ceramic vs stone, AS 3958:2023, adhesive grades, expansion joints, slip 
- [Timber floor coverings: solid hardwood, engineered and bamboo](https://chalkline.com.au/practical/floor-coverings-timber): Solid hardwood, engineered timber and bamboo flooring for Australian residential builds. Installation methods, substrate prep, expansion gap
- [Timber framing basics: the AS 1684 system for residential builds](https://chalkline.com.au/practical/timber-framing-basics): Plates, studs, noggings, lintels, bracing: the AS 1684 timber framing system for Australian residential builds. Stress grades, stud spacing,
- [Timber windows: selection, installation, and maintenance](https://chalkline.com.au/practical/windows-timber): Timber window selection, species durability, AS 2047 compliance, NCC 2022 energy rules, installation in timber framing, and maintenance regi
- [Void former (waffle pod) layout: setting the slab pattern](https://chalkline.com.au/practical/void-former-layout): How to lay out polystyrene void formers (waffle pods) before a residential slab pour: pod pattern, edge-beam clearance, trimmer bars, and se
- [Waffle pod slab construction: Australian residential guide](https://chalkline.com.au/practical/waffle-pod-slab): Waffle pod slab construction for Aussie residential: AS 2870 site classes, pod sizes, beam depths, vs stiffened raft, hold points, tolerance
- [Waffle pod slab: residential construction guide](https://chalkline.com.au/practical/waffle-pod): Waffle pod slab residential construction: site classes, pod layout, drainage, hold points, and comparison to stiffened raft. Australian NCC 
- [Wall bracing: AS 1684 BU/m calculation, bracing types, and installation](https://chalkline.com.au/practical/wall-bracing): How to calculate wall bracing demand under AS 1684, the main bracing types (sheet, strap, angle brace), spacing rules, and defects to catch 
- [Weatherboard cladding: timber and fibre cement installation guide](https://chalkline.com.au/practical/weatherboard-cladding): Weatherboard cladding for Australian builders: NCC 2022 fixing, drainage cavity, wall wrap, James Hardie Linea, BAL ratings, tolerances.
- [Wet area substrates: cement sheet, water-resistant plasterboard, and prep for waterproofing](https://chalkline.com.au/practical/wet-area-substrates): Substrate selection for Aussie wet areas: cement sheet vs water-resistant plasterboard, fixing patterns, joint treatment, AS 3740 prep befor
- [Wet area waterproofing](https://chalkline.com.au/practical/wet-area-waterproofing): Wet area waterproofing for Australian residential builders: installation guide, AS 3740:2021 standard reference, and NCC 2022 compliance.
- [Wet area waterproofing membranes: residential installation guide](https://chalkline.com.au/practical/wet-area-membranes): Wet area membrane installation for Aussie residential builders: AS 3740:2021, NCC 2022 Part 10.2, zones, upstands, hold points, licensed wat
- [Where to use which insulation (redirects to canonical)](https://chalkline.com.au/practical/where-to-use-which-insulation): Quick pointer to the full Chalkline guide on insulation placement and type selection for Australian residential builders. NCC 2022 R-values 

## Health and safety (WHS)

- [Asbestos identification on residential renos](https://chalkline.com.au/whs/asbestos-identification-on-residential-renos): Asbestos identification on residential renovations. Full process guide: presumption rule, competent persons, NATA sampling, and removal lice
- [Asbestos identification on residential renos](https://chalkline.com.au/whs/asbestos-identification): How to identify asbestos-containing materials on pre-1990 residential renos. Covers the presumption rule, competent persons, NATA sampling, 
- [Asbestos legal removal pathways](https://chalkline.com.au/whs/asbestos-legal-removal-pathways): Looking for asbestos legal removal pathways in Australia? The full Class A, Class B and 10m2 rule guide is at asbestos-removal-pathways.
- [Asbestos removal: legal pathways for residential builders](https://chalkline.com.au/whs/asbestos-removal-pathways): Licensed vs unlicensed asbestos removal in Australia. Class A covers friable, Class B covers non-friable over 10m². ACT requires a licence f
- [Confined spaces in residential construction](https://chalkline.com.au/whs/confined-spaces): When a sub-floor or water tank is a confined space, what triggers an entry permit, atmospheric thresholds under AS 2865, and rescue requirem
- [First aid requirements for residential construction sites](https://chalkline.com.au/whs/first-aid-requirements): First aid on Australian construction sites: first aider ratios, kit contents, first aid room thresholds, and HLTAID011 qualification rules u
- [High-Risk Construction Work list (HRCW)](https://chalkline.com.au/whs/hrcw-high-risk-construction-work-list): The full HRCW list for Australian builders: 18 categories under WHS Regulation 291. See which activities require a SWMS before work starts.
- [HRCW: The 18 High-Risk Construction Work categories](https://chalkline.com.au/whs/hrcw-list): The complete list of 18 High-Risk Construction Work categories under WHS Regulation 291. Know which activities require a SWMS before work st
- [Manual handling on residential sites](https://chalkline.com.au/whs/manual-handling-on-residential-sites): Manual handling on residential sites is covered fully at Chalkline. See our complete guide to WHS Reg 60 duties, controls, and common site h
- [Manual handling on residential sites: WHS Regulations Part 4.2](https://chalkline.com.au/whs/manual-handling): Manual handling injuries are the most common serious claim on Australian sites. Know reg 60 duties, the risk control hierarchy, and rules fo
- [Notifiable incidents: reporting procedure under the WHS Act](https://chalkline.com.au/whs/notifiable-incidents): How to report a notifiable incident under the WHS Act: phone your state regulator immediately, preserve the scene, submit written notice wit
- [PPE basics for residential construction](https://chalkline.com.au/whs/ppe-basics): PPE is the last line of defence on a residential build. Know what the PCBU must provide, the relevant AS/NZS standards, and which task trigg
- [SafeWork NSW: what the regulator does and how it affects your site](https://chalkline.com.au/whs/safework-nsw): SafeWork NSW enforces the WHS Act 2011 in NSW. Learn about inspector powers, improvement notices, prohibition notices, notifiable incidents,
- [Silica dust controls on residential construction sites](https://chalkline.com.au/whs/silica-dust-controls): Engineered stone banned July 2024. WES for respirable crystalline silica is 0.05 mg/m3 (8-hr TWA). Controls hierarchy, SWMS, RPE selection, 
- [Site induction procedure](https://chalkline.com.au/whs/site-induction-procedure): Site induction for workers, subbies, visitors: verify white card, brief on site hazards, explain emergency procedures, capture signed acknow
- [Site sign-on registers for residential builders](https://chalkline.com.au/whs/site-sign-on-registers): Site sign-on registers for Australian residential builders: who must sign on, what to record, white card verification, toolbox link, and dig
- [SWMS (Safe Work Method Statement)](https://chalkline.com.au/whs/swms): Everything you need to know about SWMS in Australian residential construction. When it's required, what goes in it, and how to write a compl
- [SWMS: When it's required and how to write one](https://chalkline.com.au/whs/swms-when-required): SWMS is legally required before any high-risk construction work starts in Australia. Find out exactly which 18 activities trigger it and wha
- [Toolbox talks: consultation obligations for residential builders](https://chalkline.com.au/whs/toolbox-talks): What toolbox talks must cover, how to run them, who attends, and what records to keep to satisfy WHS Act ss 47-49 consultation duties on a c
- [White card verification procedure](https://chalkline.com.au/whs/white-card-verification): Verify the worker's white card (CPCWHS1001) at site entry. Visual check, record card number, refuse construction work without one. 2-year la
- [WHS Act overview for residential builders](https://chalkline.com.au/whs/whs-act-overview): PCBU duties, officer due diligence, worker obligations, notifiable incidents, and penalties under the Australian WHS Act. Covers harmonised 
- [WHS duties when engaging subcontractors](https://chalkline.com.au/whs/whs-engaging-subcontractors): PCBU duties when engaging subcontractors: consultation, SWMS collection, site induction, and principal contractor obligations for Australian
- [WHS for engaging subcontractors](https://chalkline.com.au/whs/whs-for-engaging-subcontractors): See the full article on WHS duties when engaging subcontractors: PCBU duties, SWMS, site inductions, and principal contractor rules for Aust
- [WorkSafe Queensland: what builders need to know](https://chalkline.com.au/whs/worksafe-qld): WorkSafe Queensland (WHSQ) enforces the WHS Act 2011 on QLD sites. Covers notifiable incidents, improvement notices, principal contractor du
- [WorkSafe Victoria: OHS Act 2004 explained for builders](https://chalkline.com.au/whs/worksafe-vic): WorkSafe Victoria enforces the OHS Act 2004, not the WHS Act. Know your duties under s21, what must be notified, and how inspectors enforce 
- [WorkSafe WA: what the WHS Act 2020 means for builders in Western Australia](https://chalkline.com.au/whs/worksafe-wa): WorkSafe WA enforces the WHS Act 2020 from 31 March 2022. Know your duties: notifiable incidents, improvement notices, industrial manslaught

## Insurance and licensing

- [ABN and GST registration for residential builders](https://chalkline.com.au/insurance/abn-gst-registration): ABN and GST registration for Australian residential builders: thresholds, BAS lodgement, tax invoice requirements, and the 47% no-ABN withho
- [Builder CPD requirements in Australia](https://chalkline.com.au/insurance/continuing-professional-development-requirements): CPD requirements for Australian builders vary by state. NSW and Tasmania mandate CPD for licence renewal. See the full state-by-state breakd
- [Builder registration renewal in Victoria: fees, DBI, and what happens if it lapses](https://chalkline.com.au/insurance/builders-licence-renewal-vic): VIC builder registration renewal: 5-year term, current fees ($712 to $1,558), DBI Letter of Eligibility required, late fee $334, and what ha
- [Builder's licence renewal in Australia: state-by-state guide](https://chalkline.com.au/insurance/builders-licence-renewal): Builder's licence renewal varies by state. Compare NSW, VIC, and QLD renewal rules, fees, CPD requirements, and lapse windows.
- [Builder's licence renewal in NSW: fees, CPD, and what happens if you let it lapse](https://chalkline.com.au/insurance/builders-licence-renewal-nsw): NSW builder's contractor licence renewal: current fees ($569 to $2,380), 12 CPD points per year, 3-month lapse window, and penalties for wor
- [Builder's licence renewal in QLD: fees, MFR, and what happens if you let it lapse](https://chalkline.com.au/insurance/builders-licence-renewal-qld): QBCC builder licence renewal QLD: current fees ($324 to $1,861), 9 financial categories, 3-month lapse window, and penalties for working unl
- [Builder's solicitor: when to engage a construction lawyer](https://chalkline.com.au/insurance/builders-solicitor-when-to-engage): When Australian builders need a construction lawyer: SOP adjudications, NCAT/QCAT disputes, contract review, defects claims, statutory deman
- [Construction works insurance: what it covers and when you need it](https://chalkline.com.au/insurance/construction-works-insurance): Construction works insurance for Australian builders: what it covers, single project vs annual policies, key exclusions, and indicative prem
- [Continuing professional development for builders: requirements by state](https://chalkline.com.au/insurance/continuing-professional-development): CPD is mandatory for builders in NSW (12 points/year) and Tasmania (12 points/year, 36 over 3 years). All other states have no mandatory CPD
- [Home Warranty (DBI) VIC: see the full builder's guide](https://chalkline.com.au/insurance/home-warranty-dbi-vic): Victoria's home warranty is called DBI (Domestic Building Insurance). Full builder's guide with thresholds, cover, LOE, and 2026 changes.
- [Home warranty insurance NSW (HBCF): see full guide](https://chalkline.com.au/insurance/home-warranty-hbcf-nsw): NSW home warranty insurance (HBCF) is mandatory for residential work over $20,000. Full guide covers thresholds, trigger events, and premium
- [PI insurance for builders (professional indemnity): full guide](https://chalkline.com.au/insurance/pi-professional-indemnity-for-builders): Professional indemnity (PI) insurance for Australian builders: who needs it, what it covers, state rules. Full guide at Chalkline.
- [Professional indemnity insurance for builders: when you need it and what it covers](https://chalkline.com.au/insurance/pi-insurance-builders): When Australian builders need PI insurance: D&C contracts, NSW DBP Act obligations from 1 July 2026, claims-made policies, run-off cover, an
- [Public liability insurance for builders: limits, coverage, and what it won't cover](https://chalkline.com.au/insurance/public-liability-insurance): Public liability insurance for Australian builders: $5M–$20M limits, what's covered (third-party injury, property damage), key exclusions, s
- [QBCC Home Warranty Insurance QLD](https://chalkline.com.au/insurance/home-warranty-qbcc-qld): QBCC Home Warranty Insurance is mandatory for residential work over $3,300 in QLD. Full builder's guide at our dedicated article.
- [Workers compensation insurance for Australian residential builders](https://chalkline.com.au/insurance/workers-compensation): State-by-state workers comp guide for Australian residential builders: icare NSW, WorkSafe VIC, WorkCover QLD, WA, SA, TAS. Deemed workers, 

## Trades and subbies

- [Architect vs building designer on a residential job: scope, licensing, fees, engagement](https://chalkline.com.au/trades/architect-building-designer): Architect vs building designer in Australia: title protection, qualifications, scope for residential, fees, NSW DBP Act rules, and when each
- [Brickie on a residential job: scope, licensing, tolerances, working with other trades](https://chalkline.com.au/trades/brickie): What an Aussie brickie covers on residential: scope inclusions and exclusions, AS 3700 and AS 4773 masonry standards, licensing, tolerances,
- [Building surveyor / certifier](https://chalkline.com.au/trades/building-surveyor-trade): The building surveyor (Vic/WA) or building certifier (NSW/Qld) issues CCs, conducts mandatory inspections, and issues the OC. The legal NCC 
- [Bushfire consultant: BAL assessment, bushfire reports, what they deliver](https://chalkline.com.au/trades/bushfire-consultant): BPAD-accredited bushfire consultant: on-site BAL assessment and bushfire report for any DA on bushfire-prone land. Cost and turnaround for r
- [Cabinetmaker on a residential job: scope, licensing, tolerances, working with other trades](https://chalkline.com.au/trades/cabinetmaker): What an Aussie cabinetmaker covers on a residential build: kitchen, bathroom and wardrobe scope, AS 4386, licensing by state, tolerances and
- [Chippy (carpenter) on a residential job: scope, tolerances, working with other trades](https://chalkline.com.au/trades/chippy): What an Aussie chippy actually does on residential, scope inclusions vs exclusions, licensing state-by-state, workmanship tolerances, and wh
- [Concretor on a residential job: scope, licensing, tolerances, working with other trades](https://chalkline.com.au/trades/concretor): What an Aussie concretor covers on residential: scope, AS 2870 and AS 3600 standards, state licensing, tolerances, defects, and subbie quote
- [Crane / hiab operator on a building job: licensing, lift plans, and engaging the operator](https://chalkline.com.au/trades/crane-hiab-operator): Engaging a crane or hiab on a building site: CV high risk work licence rules, 10 metre-tonne threshold, SWMS and lift plan, exclusion zones,
- [Demolition contractor on a residential job: scope, licensing, HRCW, and asbestos](https://chalkline.com.au/trades/demolition-contractor): What a demolition contractor covers on a residential knockdown: AS 2601, NSW restricted and unrestricted demolition licences, HRCW, asbestos
- [Engaging a subbie](https://chalkline.com.au/trades/engaging-a-subbie): Thinking about engaging a subbie? The full guide covers checks, scope, contracts, WHS duties and payment terms.
- [Engaging a subcontractor: the basics for residential builders](https://chalkline.com.au/trades/engaging-a-subbie-basics): How to engage a subbie on a residential build: contractor vs employee, pre-engagement checks, scope, contract options, WHS duties, payment t
- [Environmental consultant: what a builder engages one for](https://chalkline.com.au/trades/environmental-consultant): An environmental consultant prepares the environmental reports a DA needs: acid sulfate soils plans, contaminated land assessments, remediat
- [Excavator and dirt work on a residential site](https://chalkline.com.au/trades/excavator-dirt): Excavator and dirt work on residential builds: scope, licensing, HRCW 1.5m trench rule. Full guide at excavator-contractor.
- [Excavator contractor on a residential job: scope, licensing, plant, and what to check](https://chalkline.com.au/trades/excavator-contractor): Excavator contractor on a residential build: licensing in NSW, QLD and VIC, HRCW 1.5m trench rule, Dial Before You Dig 1100, plant sizes, qu
- [Fire engineer: engagement, scope, and what their report buys you](https://chalkline.com.au/trades/fire-engineer): A fire engineer prepares Performance Solutions when DTS cannot be met (BAL-FZ, heritage, complex sites). Cost $5K to $15K residential, 4 to 
- [Geotech engineer on a residential job: scope, when you need one, what to expect](https://chalkline.com.au/trades/geotech-engineer): When to engage a geotechnical engineer on a residential job: site classification under AS 2870, borelogs, retaining walls, slope stability, 
- [Glazier on a residential job: scope, licensing, tolerances, working with other trades](https://chalkline.com.au/trades/glazier): What an Aussie glazier covers on residential: scope, AS 1288 safety glazing, AS 2047 windows, IGU defects, licensing by state, and the quote
- [Heritage consultant](https://chalkline.com.au/trades/heritage-consultant-trade): Heritage consultants prepare Statements of Heritage Impact and Conservation Management Plans for DAs on heritage-listed sites. Engage early 
- [Hiring and managing apprentices on residential builds](https://chalkline.com.au/trades/apprentices-hiring-and-managing): Hire and manage apprentices on residential builds: training contract registration, KAP subsidies, wages, WHS duties, GTO option and supervis
- [Hydraulic engineer: engagement, scope, and deliverables](https://chalkline.com.au/trades/hydraulic-engineer): Hydraulic engineers design water, stormwater, sanitary and flood systems. Builders engage them for Flood Reports, OSD, stormwater design. In
- [Landscaper on a residential job: scope, licensing, tolerances, working with other trades](https://chalkline.com.au/trades/landscaper): What an Aussie landscaper covers on residential: scope, AS 4419 soils, structural landscaping licensing by state, tolerances, quote pack.
- [NatHERS assessor: engagement, scope, and what their report does](https://chalkline.com.au/trades/nathers-assessor): What a NatHERS-accredited assessor does, when builders engage them, what the assessment report covers, and the 2025 ABSA / DMN / HERA accred
- [Painter on a residential job: scope, licensing, finishes, tolerances](https://chalkline.com.au/trades/painter): What an Aussie painter covers on residential: scope, AS/NZS 2311 finishes, state licensing, lead paint WHS, tolerances, and what to put in t
- [Plasterer on a residential job: scope, finish levels, tolerances, working with other trades](https://chalkline.com.au/trades/plasterer): What an Aussie plasterer covers on residential, scope vs exclusions, AS/NZS 2589 finish levels, state licensing, tolerances, what to put in 
- [Plumber on a residential job: scope, licensing, tolerances, working with other trades](https://chalkline.com.au/trades/plumber): What an Aussie plumber covers on residential, scope vs exclusions, AS/NZS 3500:2025, AS/NZS 5601 gas, state licensing, CoCs, what to put in 
- [Pool safety inspector](https://chalkline.com.au/trades/pool-safety-inspector): A pool safety inspector is the state-licensed trade who inspects pool barriers to AS 1926.1 and issues the certificate the owner needs befor
- [Registered surveyor on a residential job: scope, licensing, when to engage](https://chalkline.com.au/trades/surveyor): What a registered land surveyor does on a residential build: boundary ID, set-out pegs, AHD datum, deposited plans, state licensing boards, 
- [Roofer on a residential job: scope, licensing, tolerances, working with other trades](https://chalkline.com.au/trades/roofer): What an Aussie roofer covers on a residential build: tile vs metal roofing scope, AS 1562.1 and AS 2050 standards, state licensing, HRCW obl
- [SafeWork inspector: powers and how to handle a visit](https://chalkline.com.au/trades/safework-inspector): A WHS inspector (SafeWork or WorkSafe) can enter a site without notice and issue improvement or prohibition notices. How a builder should ha
- [Site cleaner on a residential build: scope, stages, WHS, and engagement](https://chalkline.com.au/trades/site-cleaner): What a site cleaner covers on a residential build: rough clean, final clean, PCI-ready sparkle, WHS requirements, no statutory licence neede
- [Site supervisor](https://chalkline.com.au/trades/site-supervisor-trade): A site supervisor runs day-to-day site coordination: setting out, pre-starts, supervising trades, sign-offs, escalation. CPC50220 is the typ
- [Sparky on a residential job: scope, licensing, tolerances, working with other trades](https://chalkline.com.au/trades/sparky): What an Aussie sparky covers on residential, scope vs exclusions, AS/NZS 3000 wiring rules, state licensing, RCDs and CoCs, what to put in t
- [Steel fixer on a residential job: scope, licensing, tolerances, working with the concretor](https://chalkline.com.au/trades/steel-fixer): What a steel fixer does on residential: slab reo, beam stirrups, footing cages, AS/NZS 4671 and AS 3600 cover requirements, licensing, commo
- [Structural engineer on a residential job: scope, registration, when you need one](https://chalkline.com.au/trades/structural-engineer): When to engage a structural engineer on an Australian residential build: footing design, beam sizing, retaining walls, state registration re
- [Subbie payment terms: what to agree, what the law requires](https://chalkline.com.au/trades/subbie-payment-terms): Subcontractor payment terms in residential construction: statutory due dates, progress claims, retention rules, and withholding rights under
- [Subbie quote pack: what every trade quote should contain](https://chalkline.com.au/trades/subbie-quote-pack): What goes in a tight subbie quote pack: scope, pricing basis, licence and CoCs, variation mechanism, programme. Used across every Australian
- [Subcontractor disputes on residential builds: payment, defects, and tribunal pathways](https://chalkline.com.au/trades/subbie-disputes): Subbie disputes on residential builds: SOPA adjudication, tools-down rights, NCAT/QCAT/VCAT pathways, defects and scope fights, and when to 
- [Tax agent: what a builder gets from a registered one](https://chalkline.com.au/trades/tax-agent): A registered tax agent lodges tax returns and BAS and gives tax advice. Builders get extended lodgement dates and, ideally, someone who unde
- [Tiler on a residential job: scope, licensing, tolerances, working with other trades](https://chalkline.com.au/trades/tiler): What an Aussie tiler covers on residential: scope inclusions and exclusions, AS 3958:2023 installation standard, state licensing, tolerances
- [Town planner (consultant)](https://chalkline.com.au/trades/town-planner-trade): Town planners prepare SoEEs, manage DAs, draft Clause 4.6 variations, and represent owners at planning panels. PIA membership signals standi
- [Waterproofer on a residential job: scope, licensing, AS 3740, common defects](https://chalkline.com.au/trades/waterproofer): What a waterproofer does on a residential build: AS 3740:2021 requirements, NSW/VIC/QLD licensing, common defects (lap failure, fall errors)

## Materials and products

- [Accoya: the acetylated radiata pine for joinery and cladding](https://chalkline.com.au/materials/accoya): Accoya is acetylated radiata pine chemically modified for stability and Class 1 durability, with a 50-year above-ground warranty. Where it f
- [Acoustic batt (sound insulation)](https://chalkline.com.au/materials/acoustic-batt): Acoustic batt is higher-density glasswool or polyester insulation (24+ kg/m³) for inter-tenancy separating walls. Rated Rw alongside thermal
- [Acoustic boards: soundproofing linings for residential builders](https://chalkline.com.au/materials/acoustic-boards): Acoustic plasterboard for party walls, theatre rooms and garage separation. NCC Part 10.7 Rw+Ctr 50 requirements, SoundChek vs Soundshield, 
- [Anchors and chemical anchors for residential construction](https://chalkline.com.au/materials/anchors-and-chemical-anchors): Sleeve, wedge, and chemical anchors for Australian residential construction. AS 5216:2021, ETA approvals, hole prep, torque specs, common ap
- [Architrave profiles: pencil round, half-splay, lambs tongue, colonial and shadowline](https://chalkline.com.au/materials/architrave-profiles): Pencil round, half-splay, lambs tongue, colonial and shadowline architrave profiles for Australian builders. MDF vs FJ pine, sizing, supplie
- [Bifenthrin: the repellent termiticide (Biflex, HomeGuard)](https://chalkline.com.au/materials/bifenthrin): Bifenthrin is a repellent synthetic-pyrethroid termiticide (Biflex, HomeGuard) used in AS 3660 termite barriers. It has a 10-year label and 
- [Biflex: FMC's bifenthrin termiticide](https://chalkline.com.au/materials/biflex-bifenthrin-termiticide): Biflex is FMC's brand name for a bifenthrin-based chemical soil termiticide widely used in AU. See bifenthrin for the active and how it work
- [Blackbutt cladding: the bushfire-rated Australian hardwood](https://chalkline.com.au/materials/blackbutt-cladding): Blackbutt is an Australian hardwood and one of seven AS 3959 bushfire-resisting timbers, usable untreated up to BAL-29. Its density, durabil
- [Bolts (M-series metric) for residential construction](https://chalkline.com.au/materials/bolts-m-series): M8 to M20 bolt sizes, property classes 4.6/8.8/10.9, hot-dip galvanised, anchor bolts, hold-down, post bases. AS 4291.1:2015, AS/NZS 1252.1:
- [Bolts for residential construction](https://chalkline.com.au/materials/bolts): Overview of structural bolts for Australian residential construction. Full coverage: M-series metric bolts, anchor bolts, hold-downs, coatin
- [Bricks: clay and concrete](https://chalkline.com.au/materials/bricks-clay-concrete): Clay vs concrete bricks: exposure grades, mortar mixes, bond patterns, cavity and veneer construction per AS 3700:2018 and NCC 2022 Housing 
- [Bullet head nail: finish carpentry nail with rounded head](https://chalkline.com.au/materials/bullet-head-nail): Bullet head nails have a small rounded head that punches below the surface for filling. Standard for architraves, skirtings, finish carpentr
- [Cement sheet (fibre cement)](https://chalkline.com.au/materials/cement-sheet): Fibre cement sheet grades (Villaboard, HardieFlex, compressed), fixing specs per NCC and manufacturer, wet area rules, silica controls, defe
- [Coach screws for residential construction](https://chalkline.com.au/materials/coach-screws): M6-M16 hex-head coach screws: sizes, pilot holes, HDG vs zinc-plated, treated pine rules. AS/NZS 1393:1996. Decks, pergolas, structural timb
- [Colorbond Ultra (severe-exposure variant)](https://chalkline.com.au/materials/colorbond-ultra): Colorbond Ultra is BlueScope's marine/severe-exposure roofing with upgraded paint and primer. Required within 1 km of breaking surf; 15-25% 
- [Compressed fibre-cement sheet: the structural floor substrate](https://chalkline.com.au/materials/compressed-fibre-cement-sheet): Compressed fibre-cement sheet is high-density structural flooring laid over joists, and the only fibre-cement permitted as a wet-area floor 
- [Concrete grades for residential builds: N20, N25, N32, N40 and beyond](https://chalkline.com.au/materials/concrete-grades): Concrete grades for Australian residential builds: N20 vs N25 vs N32, when to specify, AS 1379 supply, slump and aggregate, the docket, pric
- [Construction adhesives: types, uses, and what goes wrong](https://chalkline.com.au/materials/adhesives-construction): Practical guide to construction adhesives for Australian residential builders: PVA, polyurethane, MS polymer, epoxy, SBR. Uses, open times, 
- [Cornice](https://chalkline.com.au/materials/cornice): Cove vs square-set vs decorative cornice: sizes, fixing methods, cornice cement vs adhesive, common defects, and tolerances for Australian r
- [Dark red meranti (Shorea spp.)](https://chalkline.com.au/materials/dark-red-meranti): Dark red meranti (Shorea spp.) is the volume hardwood for Australian timber window joinery. AS 5604 DC3 above-ground; stable, paint-grade, k
- [Decking screws for Australian residential construction](https://chalkline.com.au/materials/decking-screws): 304 vs 316 stainless, Class 4 HDG for treated pine, Type 17 tip, Torx vs square drive, face-fix vs hidden-fix: Australian decking screw guid
- [Decking timbers in Australian construction: species, sizes, fixings, BAL ratings](https://chalkline.com.au/materials/decking-timbers): Decking timber selection for Australian builders: spotted gum, blackbutt, jarrah, merbau, ironbark, AS 5604 durability, AS 3959 BAL ratings,
- [Deltamethrin: the termiticide in Kordon treated sheets](https://chalkline.com.au/materials/deltamethrin): Deltamethrin is a synthetic-pyrethroid termiticide, the active in Kordon treated-sheet barriers (Envu). How it works, its AS 3660.3 use, and
- [Door hinges in Australian construction: sizes, materials, fire-rated](https://chalkline.com.au/materials/door-hinges): Door hinges in Australian construction: butt hinge types, sizes, ball-bearing, materials, fire-rated, brands, common install defects.
- [Door locks and handles in Australian construction: types, AS 4145 ratings, brands](https://chalkline.com.au/materials/door-locks-and-handles): Door locks and handles in Australian construction: AS 4145 security ratings, lever handle DDA, Lockwood Whitco Yale, fire-rated, defects.
- [Double glazing for residential builds: IGU construction, U-values, and selection](https://chalkline.com.au/materials/double-glazing): Double glazing for Australian residential: IGU construction, AS/NZS 4666, Low-E argon U-value, warm-edge spacer, NCC NatHERS performance, de
- [Dynabolt: Ramset's sleeve anchor](https://chalkline.com.au/materials/dynabolt-sleeve-anchor): Dynabolt is Ramset's brand of sleeve anchor for medium-duty fixings into concrete. See sleeve anchor for the install rules and AS 5216 detai
- [Engineered timber products: LVL, Glulam, CLT, and I-joists](https://chalkline.com.au/materials/engineered-timber-products): Engineered timber for Australian builders: LVL, Glulam, CLT, I-joists. AS 1684 limits, manufacturer span tables, where each product fits, co
- [EPDM membrane: synthetic rubber single-ply roofing](https://chalkline.com.au/materials/epdm-membrane): EPDM single-ply rubber roofing for AU flat roofs: 25-35 year life, bonded seams, extreme flexibility, where it beats TPO and modified bitume
- [Fipronil: the non-repellent termiticide (Termidor)](https://chalkline.com.au/materials/fipronil): Fipronil is a non-repellent termiticide (Termidor) used in AS 3660 barriers. How the transfer effect works, its ~8-year label, and how it di
- [Float (annealed) glass: standard residential glazing where AS 1288 allows](https://chalkline.com.au/materials/float-glass): Annealed float glass for Australian residential builds: applications outside AS 1288 safety zones, thicknesses, Low-E variants, manufacturer
- [Foil sarking: reflective membrane selection guide](https://chalkline.com.au/materials/foil-sarking): Foil sarking selection guide for Australian roofs and walls: when reflective foil delivers R-value, when it traps moisture, brand specs, AS 
- [Foil-backed plasterboard: the vapour-control wall lining](https://chalkline.com.au/materials/foil-backed-plasterboard): Foil-backed plasterboard is plasterboard with a foil layer on the back, acting as a vapour control layer on the warm side of the wall. When 
- [Framing anchors and tie-down connectors](https://chalkline.com.au/materials/framing-anchors): Framing anchors are galvanised steel connectors (triple grips, joist hangers, straps, hold-downs) that build the AS 1684 tie-down chain from
- [Glasswool batts in Australian construction: R-values, sizing, and install](https://chalkline.com.au/materials/glasswool-batts): Glasswool insulation batts in Australian construction: R-value range, AS/NZS 4859, Bradford Knauf Pink Batts, install spec and defects.
- [Glulam beams in Australian construction: GL grades, curved sections, and exposed feature beams](https://chalkline.com.au/materials/glulam): Glulam (glued-laminated timber) beams for Australian builders: GL8 GL10 GL12 GL17 stress grades, AS/NZS 1328, Hyne Wesbeam Dindas, exposed f
- [Granitgard: the graded-stone termite barrier](https://chalkline.com.au/materials/granitgard): Granitgard is a non-toxic graded-stone (1.5 to 5mm) termite barrier, CodeMark-certified with a 50-year warranty. How it works and when it mu
- [Gyprock: CSR's branded plasterboard family](https://chalkline.com.au/materials/gyprock): Gyprock is CSR's plasterboard brand: Standard, Aquachek, Soundchek, Fyrchek, Impactchek, Shaftliner. What each variant does and where the Re
- [Hyspan: CHH's LVL beam brand](https://chalkline.com.au/materials/hyspan-chh-lvl): Hyspan is Carter Holt Harvey's LVL brand, the volume residential LVL beam in Australia. See LVL beams for the engineered product and how it 
- [Impact-resistant plasterboard: the high-traffic wall lining](https://chalkline.com.au/materials/impact-resistant-plasterboard): Impact-resistant plasterboard (Gyprock Impactchek) is a 13 mm reinforced board for corridors, stairwells, and high-traffic walls. Twice the 
- [Internal wet-area waterproofing membranes: AS 3740 / AS 4858 compliant products](https://chalkline.com.au/materials/waterproofing-membranes): Internal wet area waterproofing membranes for Australian builders: AS 3740 AS/NZS 4858, Mapei Ardex Bostik Davco brands, types, defects.
- [Joint compound](https://chalkline.com.au/materials/joint-compound): Setting vs drying joint compound for plasterboard: three-coat system per AS/NZS 2589, working times, tape choice, sanding, defects, supplier
- [Knauf: the rebranded USG Boral plasterboard line](https://chalkline.com.au/materials/knauf): Knauf is the rebranded USG Boral plasterboard line: Wetstop, Sheetrock, Fireshield, Soundshield, AQUAPANEL. Specification, system warranty, 
- [Kordon: the deltamethrin treated-sheet termite barrier](https://chalkline.com.au/materials/kordon-termite-barrier): Kordon is a deltamethrin-impregnated treated-sheet termite barrier (Envu), CodeMark-certified under AS 3660 for 50+ years and Mastotermes re
- [Laminated glass for residential builds: PVB and SGP interlayers, AS 1288 selection](https://chalkline.com.au/materials/laminated-glass): Laminated safety glass for Australian residential builds: PVB SGP interlayer, AS 1288 balustrade skylight, UV blocking, acoustic, BAL, defec
- [LVL beams in Australian construction: stress grades, sizing, and manufacturer span tables](https://chalkline.com.au/materials/lvl-beams): LVL beams in Australian construction: F17 F22 F27 stress grades, AS/NZS 4357 manufacturing, Wesbeam Tilling Carter Holt Harvey, span table s
- [Metal roofing in Australian construction: profiles, coatings, and Colorbond selection](https://chalkline.com.au/materials/metal-roofing): Metal roofing in Australian construction: Custom Orb, Trimdek, Klip-Lok, Spandek profiles, Colorbond vs Zincalume, AS 1562.1, BAL ratings, f
- [Modified bitumen roofing: torch-on built-up membrane systems](https://chalkline.com.au/materials/modified-bitumen-roofing): Modified bitumen roofing for AU flat roofs: APP and SBS chemistry, two-ply and three-ply systems, torch-on install, fire-watch SWMS, vs sing
- [Mortar mixes for residential masonry: M2, M3, M4 and the NCC ratios](https://chalkline.com.au/materials/mortar-mixes): Mortar mix ratios for Australian residential masonry: AS 3700 M2 M3 M4 grades, NCC 2022 Table 5.6.3 proportions, exposure class selection, c
- [MS polymer adhesive: builder guide to modified silicone construction adhesive](https://chalkline.com.au/materials/ms-polymer-adhesive): MS polymer (modified silicone) adhesive cures on contact with moisture. Bonds wet, paints, no shrinkage. Sub-floor, panel bonding, high-flex
- [MS polymer sealants: paintable, isocyanate-free, what they replace](https://chalkline.com.au/materials/sealants-ms-polymer): MS polymer (modified silane) sealants for Australian builders: paintable, isocyanate-free, broad substrate range. Sikaflex MS, Soudaseal, X'
- [Nails for residential construction: types, gauges, and when to use them](https://chalkline.com.au/materials/nails-types-and-gauges): Bullet head vs flat head, hand nails vs gun nails, ring shank, HDG and stainless: full guide to nail types and gauges for Australian residen
- [Particleboard flooring: the residential floor-sheeting standard](https://chalkline.com.au/materials/particleboard): Particleboard is the standard floor sheeting over joists in AU residential construction. AS 1860 install rules, H2 termite-treated grades, w
- [Pine framing grades: MGP10, MGP12, MGP15, F-grades, and treatment levels](https://chalkline.com.au/materials/pine-framing-grades): MGP10, MGP12, MGP15, F5, F7 framing grades and H1–H4 treatment levels for Australian residential pine framing. AS 1684 span table inputs, co
- [Plasterboard](https://chalkline.com.au/materials/plasterboard): Plasterboard grades, sheet sizes, screw types and spacing per AS/NZS 2589, install sequence, common defects, supplier list. Plain English wi
- [Plasterboard screws: bugle head, thread types, lengths, and install](https://chalkline.com.au/materials/plasterboard-screws): Fine vs coarse thread, 25mm to 50mm lengths, depth-of-set rule, screw spacing per AS/NZS 2589, auto-feed gun tips and common defects explain
- [Polyester batts in Australian construction: allergen-free insulation alternative](https://chalkline.com.au/materials/polyester): Polyester insulation batts for Australian builders: recycled PET, no fibre irritation, AS/NZS 4859, Bradford Autex Pink Batts, R-values, def
- [Polyurethane sealants: movement joints, perimeter sealing, and what goes wrong](https://chalkline.com.au/materials/sealants-polyurethane): Guide to polyurethane sealants for Australian builders: Sikaflex PRO, Sikaflex 11FC, Bostik Seal N Flex. Movement joints, render-to-aluminiu
- [Pryda Speedbrace: the volume residential bracing system](https://chalkline.com.au/materials/pryda-speedbrace-bracing): Pryda Speedbrace is the volume pressed-steel diagonal wall bracing on AU timber frames. See wall bracing for the install and AS 1684 detail.
- [Reflective foil insulation: sarking, vapour barriers, and where it actually delivers R-value](https://chalkline.com.au/materials/foil-reflective): Reflective foil insulation for Australian builders: aluminium foil sarking, air-gap R-value, AS/NZS 4859 + AS/NZS 4200, Anticon Sisalation K
- [Reo (steel reinforcement) for residential concrete](https://chalkline.com.au/materials/reo-reinforcement): Mesh grades SL72 to SL102, bar sizes N12 to N20, cover requirements 30/40 mm per NCC 2022, lap lengths, bar chair spacing, pre-pour checklis
- [Rigid foam insulation boards: EPS, XPS, PIR, phenolic for Australian builds](https://chalkline.com.au/materials/rigid-foam): Rigid foam insulation boards for Australian residential builds: EPS XPS PIR phenolic chemistry, R-values, applications, brands, fire perform
- [Rockwool (stone wool) insulation: fire-rated walls and acoustic applications](https://chalkline.com.au/materials/rockwool): Rockwool stone wool insulation for Australian builders: fire-rated walls, inter-tenancy acoustic, AS/NZS 4859, brands, cost vs glasswool.
- [Roof tiles in Australian construction: concrete, terracotta, slate, and profile selection](https://chalkline.com.au/materials/roof-tiles): Roof tiles in Australian construction: concrete vs terracotta, profile types, pitch minimums, AS 2050, Boral Monier Bristile, fixing systems
- [Roofing membranes in Australian construction: sheet, liquid-applied, and where each lands](https://chalkline.com.au/materials/roofing-membranes): Roofing membranes for Australian builders: TPO EPDM PVC modified bitumen sheet, PMMA polyurethane liquid-applied, AS 4654, brands, applicati
- [Sarking: pliable building membrane for roofs, walls, and underfloor](https://chalkline.com.au/materials/sarking): Sarking as a building membrane for Australian residential builds: AS/NZS 4200 water vapour wind barrier, BAL rated, install reqs, brands.
- [Screws and fasteners for residential construction: a practical overview](https://chalkline.com.au/materials/screws-and-fasteners-overview): Head types, drive types, AS 3566 Class 3/4 corrosion ratings, wood vs metal vs masonry. Practical screw selection for Australian residential
- [Scyon Linea weatherboard: builder's product guide](https://chalkline.com.au/materials/scyon-linea): Scyon Linea weatherboard specs, install rules, and site checks: 16 mm fibre cement, 150 or 180 mm face widths, BAL-29, RCS wet-cut complianc
- [Scyon Stria: the horizontal-groove fibre cement cladding](https://chalkline.com.au/materials/scyon-stria): Scyon Stria is a James Hardie fibre cement cladding board with a 15mm horizontal shiplap groove. Sizes, cavity-fix install, cut-end sealing,
- [Scyon: James Hardie's engineered fibre cement range](https://chalkline.com.au/materials/hardies-scyon): Scyon is James Hardie's premium engineered fibre cement: Linea weatherboard, Stria cladding, Secura flooring. Different rules from standard 
- [Shower base: preformed tray vs tiled set-down](https://chalkline.com.au/materials/shower-base): The two ways to build a shower floor in Australia: a preformed acrylic or stone-resin tray, or a tiled set-down over a membrane. Materials, 
- [Silicone sealants: neutral cure vs acetoxy, wet area vs glazing grade](https://chalkline.com.au/materials/sealants-silicone): Neutral cure vs acetoxy silicone sealants for Australian builders: wet area, glazing, AS 4020, mould resistance, paintability limits. Selley
- [Skirting board profiles: pencil round, half-splay, lambs tongue, colonial and more](https://chalkline.com.au/materials/skirting-profiles): Pencil round, half-splay, lambs tongue, colonial and heritage skirting profiles: heights by ceiling, MDF vs FJ pine, supplier ranges, tolera
- [Steel beams in Australian construction: sections, grades, coatings, and selection](https://chalkline.com.au/materials/steel-beams): Steel beams in Australian construction: UB UC PFC SHS RHS sections, Grade 300 standard, AS 4100 design, lintel and column selection, coating
- [Steel framing in Australian construction: cold-formed sections, gauges, and selection vs timber](https://chalkline.com.au/materials/steel-framing): Steel framing in Australian construction: cold-formed C-section, BMT gauges, AS/NZS 4600, BlueScope TrueCore, fixings, vs timber framing.
- [Structural hardwood in Australian construction: species, F-grades, and durability classes](https://chalkline.com.au/materials/hardwood-structural): Structural hardwood in Australian construction: spotted gum, ironbark, blackbutt species, F17-F34 stress grades, AS 2082 grading, AS 5604 du
- [Structural screws for timber construction: Australia](https://chalkline.com.au/materials/structural-screws): ASSY VG, SPAX, Simpson SDWS: structural screws for timber-to-timber. No pre-drilling, high withdrawal and shear loads, AS 1720.1 design cont
- [Termidor: BASF's fipronil termiticide](https://chalkline.com.au/materials/termidor-fipronil-termiticide): Termidor is BASF's brand name for a fipronil-based non-repellent termiticide. See fipronil for the active and how the transfer effect works.
- [TermiMesh: the stainless-steel mesh termite barrier](https://chalkline.com.au/materials/termimesh): TermiMesh is a TMA725 stainless-steel mesh termite barrier with apertures too small for termites. Chemical-free, CodeMark-certified, accredi
- [Tile backer boards: cement-bonded, glass-mat gypsum, and foam-core options for Australian wet areas](https://chalkline.com.au/materials/tile-backer-boards): Compare tile backer boards for Australian wet areas: cement-bonded, glass-mat gypsum, foam-core. AS 3740, NCC 2022 substrate rules, fixing, 
- [Tile underlay: the sheet that stabilises a floor before tiling](https://chalkline.com.au/materials/tile-underlay): Tile underlay is a thin fibre-cement sheet fixed over a subfloor to give a rigid, stable base for ceramic tiles and stop cracking. How it di
- [Toughened (tempered) glass for residential builds: AS 1288, AS/NZS 2208, applications](https://chalkline.com.au/materials/toughened-glass): Toughened (tempered) safety glass for Australian residential builds: AS 1288 AS/NZS 2208, shower screens, balustrades, thicknesses, defects.
- [TPO membrane: single-ply roofing for residential flat roofs](https://chalkline.com.au/materials/tpo-membrane): TPO single-ply roofing for Australian flat roofs: 1.2-1.5 mm thick, hot-air welded seams, white reflective surface, 20-30 year life, install
- [Treated pine: hazard classes H1 to H6, chemicals, and where each lands](https://chalkline.com.au/materials/treated-pine): Treated pine hazard classes for Australian residential builders: H1 H2 H3 H4 H5 H6 application mapping, CCA ACQ LOSP MCA chemicals, AS 1604.
- [Trubolt: Ramset's wedge anchor](https://chalkline.com.au/materials/trubolt-wedge-anchor): Trubolt is Ramset's brand of torque-controlled wedge anchor for structural fixings into concrete. See wedge anchor for the install rules and
- [Vapour barriers for residential builds: under-slab and envelope membranes](https://chalkline.com.au/materials/vapour-barriers): Vapour barriers for Australian residential builds: under-slab polyethylene 0.2 mm minimum AS 2870, envelope cool-climate, products, install.
- [Wall ties: cavity masonry and masonry veneer](https://chalkline.com.au/materials/wall-ties): Wall tie selection for cavity masonry and veneer: duty grades, spacing per NCC 2022, corrosion classes R1-R4, coastal requirements, and retr
- [Water-resistant plasterboard: the wall-only wet-area board](https://chalkline.com.au/materials/water-resistant-plasterboard): Water-resistant plasterboard (Aquachek, Wetstop) is permitted as a wet-area wall substrate under the NCC, but not on floors, and it still ne
- [Western red cedar (Thuja plicata): the premium joinery timber](https://chalkline.com.au/materials/western-red-cedar): Western red cedar (Thuja plicata) is the premium AU joinery timber: low density, naturally durable DC2 above-ground, dimensionally stable, p
- [Western red cedar cladding: the premium timber weatherboard](https://chalkline.com.au/materials/western-red-cedar-cladding): Western red cedar (Thuja plicata) is a naturally durable, low-density premium cladding timber. Why it needs stainless or silicon-bronze fixi
- [Window hardware in Australian construction: latches, stays, restrictors, locks](https://chalkline.com.au/materials/window-hardware): Window hardware in Australian construction: AS 5203 child restrictors, latches, stays, casement and sash, Whitco Doric brands, defects.

## Business operations

- [Apprentice payroll: what residential builders must set up and pay](https://chalkline.com.au/business/apprentice-payroll): Set up apprentice payroll correctly: award wage percentages, PAYG withholding, 12% super, Payday Super from July 2026, STP, and state payrol
- [BAS / GST timing for builders](https://chalkline.com.au/business/bas-gst-timing-for-builders): Builder BAS / GST timing: quarterly cycle, due dates, GST on progress claims, retention treatment, and the tax-account discipline that preve
- [Buildxact estimating workflow for residential builders: takeoff to quote](https://chalkline.com.au/business/buildxact-estimating-workflow): Buildxact estimating workflow for Australian residential builders: digital takeoff, cost library, quote builder, Xero integration, common pi
- [Buildxact import and export: get data in and out fast](https://chalkline.com.au/business/buildxact-import-export): Step-by-step: import supplier price catalogs, estimates and contacts into Buildxact, export job cost data to Excel, and set up the two-way X
- [Cashflow management for residential builders](https://chalkline.com.au/business/cashflow-management-for-residential-builders): Cashflow on a residential build: stage payments in, trade payments out, BAS quarterly, payroll fortnightly. Avoiding the squeeze with deposi
- [Compliance calendar for residential builders: renewal cycles, tax dates, and what you cannot miss](https://chalkline.com.au/business/compliance-calendar): Annual compliance calendar for Australian residential builders: licence renewals, insurance, CPD, BAS, super, TPAR, and payday super from 1 
- [Excel estimating templates for residential builders](https://chalkline.com.au/business/excel-estimating-templates): Excel estimating templates for residential builders: structure, cost library, takeoff sheets, when to graduate to estimating software like B
- [Insurance schedule tracker for builders: what to track, when, and how](https://chalkline.com.au/business/insurance-schedule-tracker): How Australian residential builders track multiple insurance policies, renewal dates, and certificates of currency to stay compliant and avo
- [Job costing reports for residential builders](https://chalkline.com.au/business/job-costing-reports): How job costing works for Australian residential builders: cost categories, overhead allocation, variance tracking, and software options.
- [Pay calendar for residential builders: wages, super, BAS, and TPAR](https://chalkline.com.au/business/pay-calendar): Master the residential builder pay calendar: employee wages, super guarantee due dates, BAS lodgement, TPAR, and the 2026 payday super chang
- [Quote-to-invoice flow](https://chalkline.com.au/business/quote-to-invoice-flow): Quote-to-invoice flow: estimate, quote, contract, progress claim, variation, invoice. Each step is a control point. Built right, it's the en
- [Subbie payments and statements: the builder's operational checklist](https://chalkline.com.au/business/subbie-payments-and-statements): How to pay subcontractors correctly: RCTI agreements, remittance advice, TPAR obligations, ABN withholding, super for contractors, and Xero 
- [Xero job costing for residential builders](https://chalkline.com.au/business/xero-job-costing): Job costing in Xero: Tracking Categories or Projects, bill assignment, time tracking, retainer treatment, and reading the job profit reports
- [Xero Projects (project mode for residential builders)](https://chalkline.com.au/business/xero-project-mode): Xero Projects is Xero's add-on for tracking time, costs, and profit per job. For builders, it sits between vanilla Xero and Buildxact-style 
- [Xero setup for Australian builders: chart of accounts, GST, projects](https://chalkline.com.au/business/xero-setup-for-builders): Xero setup for Australian builders: chart of accounts, GST, tracking vs Projects, subbie ABN, RCTI, common defects. Residential and commerci

## Tools

- [AS 1684 Navigator](https://chalkline.com.au/?tool=as-1684-navigator): Routes builders to the right AS 1684 Part and Table for span, bracing, lintel, and tie-down lookups. Lists the inputs you need before you open the table. Never reproduces table values.
- [SWMS Generator](https://chalkline.com.au/?tool=swms-generator): Drafts a NSW high-risk construction work (HRCW) Safe Work Method Statement from a conversational input flow. Gathers trade, activity, hazards, and site details, then emits a printable draft for the PCBU to review and sign. NSW only, single-trade, draft only.
- [Variation Letter Generator](https://chalkline.com.au/?tool=variation-letter-generator): Drafts a formal variation request letter to your client from a short conversational intake. Walks one question at a time (company, site, approver, contract type, variation description, cost ex-GST, time impact, approval deadline) and emits a Chalkline-branded PDF the owner can sign. You can also paste an existing email or quote and the tool will fill in what it can.
- [Toolbox Talk Drafter](https://chalkline.com.au/?tool=toolbox-talk-drafter): Drafts a structured pre-start toolbox talk from a quick conversational intake. Walks one question at a time (company, site, presenter, topic, attendee count) and emits a Chalkline-branded PDF with talking points, key reminders, and a crew sign-on sheet. Not a substitute for a SWMS when high-risk construction work is involved.

## Optional

- [Glossary index](https://chalkline.com.au/glossary): 998 plain-language definitions across contracts, structural, services, compliance, wet areas, documentation
- [Newsletter](https://chalkline.com.au/newsletter): weekly digest of new articles and NCC/AS updates
- [RSS feed](https://chalkline.com.au/feed.xml)