Plasterer on a residential job: scope, finish levels, tolerances, working with other trades

TL;DR

The plasterer fixes plasterboard, sets and joints it, sands to the finish level. AS/NZS 2589:2017 defines three finish levels (Level 3, 4, 5); Level 4 is residential paint-grade, Level 5 is critical-light. Specifying the level in writing before work starts is the cheapest insurance against the most common PCI dispute: “joints visible under raking light”. m² rates for fix-and-set typically $14 to $25/m² ex-GST, day rates $60 to $90/hr ex-GST. Licensing differs every state; NSW splits wet plastering and dry plastering into separate categories, and work over $5,000 needs a licence under the Home Building Act 1989.

What this trade covers

Two distinct trades sit under “plasterer” in residential.

Dry plasterer (sheet plasterer, plasterboard fixer): fixes plasterboard to studs and joists, tapes and sets joints, sands, installs cornice. The standard interior wall and ceiling lining trade. AS/NZS 2589:2017 governs the work.

Wet plasterer (solid plasterer, renderer): applies cement render or solid plaster to masonry walls, internally or externally. Rare in modern residential except feature walls or rendered facades.

Most residential jobs only need a dry plasterer. The quote pack should be clear which trade is engaged.

What’s in scope (typical, dry plasterer)

Fix plasterboard to walls and ceilings per substrate type
Tape and set internal and external joints, corner beads, control joints
Sand to the specified AS 2589 finish level
Install cornice, set the line and mitre internal corners
Cut openings for sparky and plumber rough-ins where coordinated
Clean up plasterboard offcuts and waste from each work area

What’s out of scope (often confused)

Painting is a separate trade. Plasterer leaves the surface paint-ready at the specified level.
Frame and ceiling structure is the chippy’s scope. A bad frame produces a bad lining.
Waterproofing: plasterer may install cement-sheet substrate behind tile, but membranes are a separate trade per AS 3740.
Acoustic detailing (resilient mounts, acoustic sealants, double-stud assemblies) is sometimes plasterer, often a specialist.
Plasterboard supply is sometimes plasterer-supplied, sometimes builder-supplied. The quote should state who buys the boards.
Fire-rated systems: plasterer installs to a manufacturer’s tested system. They follow the system; they don’t design it.

The quote or scope of works should specify which items are in and which are out. Most variations land on these scope edges.

Engagement basics

Licensing, state-by-state

State	Scheme	Key threshold or rule
NSW	Fair Trading contractor licence: separate categories for wet plastering and dry plastering	Required for residential building work over $5,000 (labour + materials, including GST). Penalty for unlicensed work up to $22,000 (individual) / $110,000 (company) under the Home Building Act 1989. From 1 July 2026, registered building practitioners under the Design and Building Practitioners Act 2020 also need mandatory PI insurance.
VIC	VBA Domestic Builder Limited: separate classes for Sheet Plastering and Solid Plastering and Rendering	Domestic building work over $10,000 must be done by a registered practitioner under the Building Act 1993. Major Domestic Building Contract triggers at the same threshold. Domestic Building Insurance required from $16,000.
QLD	QBCC trade contractor licence: separate classes for Plastering Drywall and Plastering Solid	QBCC licence required for licensed building work; Cert III in Wall and Ceiling Lining (CPC31220) is the standard pathway for plastering drywall.
WA, SA, TAS, NT, ACT	Each state has its own scheme	Verify current threshold and qualification path with the state regulator before quoting.

Verify current rules with the regulator before quoting in a state you haven’t worked in. Penalties for unlicensed work are real.

Insurance the plasterer should carry

Public Liability: typical floor $5m for a sole-trader residential plasterer, $10m if working under a head contractor
Workers Compensation: required if any employees or apprentices
PI insurance: from 1 July 2026 in NSW, mandatory for registered building practitioners under the DBP Act 2020; check the current state requirements before quoting

Current Certificates of Currency for PL and Workers Comp should be sighted before any work starts. The plasterer holds them. The party engaging (usually the builder, sometimes the client direct) confirms them. A screenshot from last year doesn’t cut it.

Pricing basis

m² rate, fix and set: typical $14 to $25/m² ex-GST for Level 4, varies by state and ceiling height. Add $8 to $15/m² ex-GST for Level 5. Cornice usually a separate lineal-metre rate.
Day rate: typical $60 to $90/hr ex-GST or $500 to $750/day ex-GST. Suits patching, small renovation, awkward integration.
Lump sum: common on new builds and well-documented renovations.

Day-rate work needs a written hours record; m² and lump-sum jobs need a clear scope. Be clear which one the contract is, and which one variations get priced under.

Tolerances and acceptance

Plasterer work is judged at PCI against the contract spec, AS/NZS 2589:2017 (for finish level and installation), and the HIA Guide to Materials and Workmanship plus the relevant state Guide to Standards and Tolerances (for the workmanship layer).

AS/NZS 2589:2017 finish levels

The Australian/New Zealand standard defines three finish levels. Specify the level in the contract; “paint-ready” without a level number is the single most common cause of disputes.

Level	Where used	Joint treatment
Level 3	Concealed areas only (above ceilings, inside service shafts), not painted	Tape coat plus one finishing coat
Level 4	Standard residential paint finish	Tape coat plus two finishing coats; sanded smooth, free of tool marks and ridges
Level 5	Critical-light areas, high-gloss paint, large unbroken expanses	Level 4 jointing plus a full skim coat over the entire board surface

Note: many industry pages and supplier brochures still describe “Level 1 to Level 5”, which reflects an older or US-style convention. AS/NZS 2589:2017 is the binding standard in Australia and defines only Level 3, 4, and 5. Specify by AS reference when contracting.

Workmanship tolerances (HIA pending)

Numerical workmanship limits for plasterer-installed surfaces are set by the HIA Guide to Materials and Workmanship and the relevant state Guide to Standards and Tolerances. Verified numerical values are pending HIA member access.

Item	Guide coverage
Joint visibility under raking light at Level 4 finish	Per current HIA Guide and state Guide. Pending HIA member access. [HIA-012]
Set surface flatness deviation under a long straightedge	Per HIA Guide and state Guide. Pending. [HIA-013]
Sanded surface defect criteria (sander marks, fuzz, over-sand exposing tape)	Per HIA Guide and state Guide. Pending. [HIA-014]
Cornice mitre tightness and joint set	Per HIA Guide and state Guide. Pending. [HIA-015]

Inspection method

AS/NZS 2589:2017 specifies the viewing distance and lighting for finish-level assessment. Specify the inspection method in the contract, or rely on AS 2589’s default.

Common defects to look for

What inspectors flag at PCI for plasterer work:

Banded joints visible under raking light (often Level 4 work that should have been specified Level 5)
Sander tracks, fuzz from over-sanding through joint compound paper
Cornice line wavy, mitres open, end-of-run gaps to architraves
Fastener pops later in the build (chippy frame movement blamed on the plasterer)
External corner beads off-line, dented from traffic, set unevenly
Control joints missing where ceiling spans exceed manufacturer or AS 2589 limits
Set-too-thin patches showing tape outline at internal corners
Compound on door frames, architraves, skirting: cleanup not done before painter
Wet-area substrate scribed badly to the floor waste, gaps compromising downstream waterproofing

Most are caught before paint with a raking-light torch inspection. Banded joints visible only after paint get expensive.

Subbie quote pack, what should be in it

A complete plasterer quote pack covers:

Scope: which areas (walls, ceilings, cornice, patching), finish level per area, control joints, fire or acoustic systems
Pricing basis: m² rate, day rate, or lump sum, with the rate stated for variations
Materials: who supplies plasterboard, joint compound, cornice, fasteners
Programme: days on site for fix vs set, sequencing (frame ready, services rough-in done)
Licence and insurance: current licence (correct class for the state), CoCs for PL and Workers Comp, PI where required
Site obligations: clean up after each phase, waste disposal, dust control during sanding
Variation mechanism: pricing, written authorisation requirement, day rate for unscoped work

The same list reads from different sides: the engaging party (usually the builder, sometimes the client direct) uses it as the quote template and requires all items before signing; the plasterer quoting provides all of it unprompted to win more jobs; the client uses it as the bar the builder should be applying.

Health & safety

Respirable crystalline silica dust from sanding joint compound and cement sheet. Workplace exposure standard 0.05 mg/m³ over 8 hours per Safe Work Australia. Controls: vacuum-extracted sanders, wet methods where practical, P2 half-face respirator minimum, no dry sweeping. See the model Code of Practice on managing crystalline silica risks.
Manual handling of plasterboard sheets (a 10mm 4800 sheet is around 30kg). Two-person lifts for ceilings, sheet trolleys for high-volume work.
Working at heights (ceiling fix, stilts, scaffolding): standard fall-from-height controls. Stilts use must comply with the relevant state regulator.

Going deeper

Planned trade-craft articles for plasterers on the tools: stud-and-track partition setting out, cornice mitre cutting, hand vs box vs auto taper, plasterboard patching, Level 5 skim-coat technique, suspended ceiling grid.

References

AS/NZS 2589:2017, Gypsum linings, Application and finishing (Standards Australia) (verified 2026-05-04)
NSW Fair Trading wet plastering licences (verified 2026-05-04)
NSW Government dry plastering work (verified 2026-05-04)
VBA Domestic Builder Limited registration (Victorian Building Authority) (verified 2026-05-04; VBA transitioning to Building & Plumbing Commission per 2026 reforms)
VBA: What is domestic building work (verified 2026-05-04)
QBCC Plastering Drywall licence (verified 2026-05-04)
QBCC Plastering Solid licence (verified 2026-05-04)
Safe Work Australia: managing the risks of respirable crystalline silica (verified 2026-05-04)
HIA Guide to Materials and Workmanship (Housing Industry Association), pending member access for verified numerical tolerances