MGP10
MGP10: machine graded pine with a characteristic bending strength used in AS 1684 span tables for residential framing. Common grades: MGP10, MGP12, MGP15.
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MGP10 is a machine graded pine stress grade used in residential timber framing in Australia. The number (10, 12, 15) refers to the characteristic bending strength in megapascals (MPa). AS 1684 span tables are published for MGP10, MGP12, and MGP15, allowing builders and chippies to select beam, bearer, joist, and rafter sizes directly from the tables without an engineer.
MGP grading is performed by machine (stiffness-based), not visually, so the grade is consistent and predictable. MGP10 is the minimum for structural framing members in most residential applications; MGP12 or MGP15 is used for longer spans or heavier loads.
The equivalent stress grade notation for visually graded hardwood or softwood uses the F-prefix system (F5, F7, F8, F11, F14, F17). F5 and MGP10 are approximately equivalent for many span table applications.
Also known as: machine graded pine, MGP12, MGP15, F5, F7, F8
Category: Timber specification, stress grade
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Last updated: 2026-05-08. Verified: 2026-05-08.