Treated Pine 140 x 45mm MGP10 / F7
Treated Pine 140 x 45mm MGP10 / F7 is a MGP10-graded structural softwood meeting AS 1684 residential framing requirements, kiln-dried to ≤ 15 % MC for dimensional stability on site. H2 Blue preservative treatment provides Class 2 termite and decay resistance. In stock at BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
Price range: $36.85 through $61.60
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Treated Pine 190 x 45mm MGP10 / F7
Treated Pine 190 x 45mm MGP10 / F7 is a MGP10-graded structural softwood meeting AS 1684 residential framing requirements, kiln-dried to ≤ 15 % MC for dimensional stability on site. H2 Blue preservative treatment provides Class 2 termite and decay resistance. In stock at BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
Price range: $49.50 through $82.50
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Treated Pine 240 x 45mm MGP10 / F7
Treated Pine 240 x 45mm MGP10 / F7 is a MGP10-graded structural softwood meeting AS 1684 residential framing requirements, kiln-dried to ≤ 15 % MC for dimensional stability on site. H2 Blue preservative treatment provides Class 2 termite and decay resistance. In stock at BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
Price range: $69.30 through $115.94
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Treated Pine 290 x 45mm MGP10 / F7
Treated Pine 290 x 45mm MGP10 / F7 is a MGP10-graded structural softwood meeting AS 1684 residential framing requirements, kiln-dried to ≤ 15 % MC for dimensional stability on site. H2 Blue preservative treatment provides Class 2 termite and decay resistance. In stock at BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
Price range: $96.80 through $161.70
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Treated Pine 70 x 35mm MGP10 / F7
Treated Pine 70 x 35mm MGP10 / F7 is a MGP10-graded structural softwood meeting AS 1684 residential framing requirements, kiln-dried to ≤ 15 % MC for dimensional stability on site. H2 Blue preservative treatment provides Class 2 termite and decay resistance. In stock at BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
Price range: $14.30 through $24.30
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Treated Pine 70 x 45mm MGP10 / F7
Treated Pine 70 x 45mm MGP10 / F7 is a MGP10-graded structural softwood meeting AS 1684 residential framing requirements, kiln-dried to ≤ 15 % MC for dimensional stability on site. H2 Blue preservative treatment provides Class 2 termite and decay resistance. In stock at BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
Price range: $17.60 through $30.03
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Treated Pine 90 x 35mm MGP10 / F7
Treated Pine 90 x 35mm MGP10 / F7 is a MGP10-graded structural softwood meeting AS 1684 residential framing requirements, kiln-dried to ≤ 15 % MC for dimensional stability on site. H2 Blue preservative treatment provides Class 2 termite and decay resistance. In stock at BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
Price range: $18.04 through $30.80
Select optionsThis product has multiple variants. The options may be chosen on the product page
Treated Pine 90 x 45mm MGP10 / F7
Treated Pine 90 x 45mm MGP10 / F7 is a MGP10-graded structural softwood meeting AS 1684 residential framing requirements, kiln-dried to ≤ 15 % MC for dimensional stability on site. H2 Blue preservative treatment provides Class 2 termite and decay resistance. In stock at BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
Price range: $23.98 through $40.70
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Treated Pine 90 x 70mm MGP10 / F7
Treated Pine 90 x 70mm MGP10 / F7 is a MGP10-graded structural softwood meeting AS 1684 residential framing requirements, kiln-dried to ≤ 15 % MC for dimensional stability on site. H2 Blue preservative treatment provides Class 2 termite and decay resistance. In stock at BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
Price range: $39.60 through $66.00
Select optionsThis product has multiple variants. The options may be chosen on the product pageFrequently Asked Questions — Structural Timber
MGP10 (Machine Graded Pine) and F7 (visually stress-graded pine) are both structural grades of treated pine suitable for residential framing, but they are classified differently. MGP10 is mechanically tested with a characteristic bending strength of 10 MPa and is the most widely specified grade for floor joists, wall frames, and roof rafters under AS 1684. F7 is visually graded and broadly equivalent in strength — it is commonly accepted as a substitute where MGP10 is unavailable. For most Melbourne residential projects, MGP10 is the preferred choice as it is more familiar to engineers and building inspectors. Always refer to your structural engineer's specifications before substituting grades.
The Hazard Class (H) rating indicates the level of chemical preservation applied to protect timber against rot, fungi, and termites. H3 treated pine is designed for above-ground external use where the timber is exposed to wetting and drying — typical applications include decking boards, pergola rafters, and fence rails. H4 treated pine is required for in-ground or in-concrete contact, such as fence posts, retaining wall uprights, and landscaping sleepers. Using H3 timber in an H4 application (e.g., burying it in soil) will significantly reduce its service life and may void compliance with the NCC. BuildBarn clearly labels all treated pine by H-class — our staff can confirm the right grade for your application.
AS 1684 (Residential Timber-Framed Construction) is the primary Australian Standard governing the design and construction of timber frames in Class 1 and Class 10 buildings — houses, garages, and outbuildings. It specifies span tables for bearers, joists, rafters, and wall studs based on timber grade, spacing, load conditions, and wind classification zone. Key requirements include: using structurally graded timber (minimum MGP10 or F7 for load-bearing members), correct connection hardware (joist hangers, hurricane ties, framing anchors), and a compliant fixing schedule. All structural timber sold at BuildBarn meets AS 1684 span table requirements — our team can assist in selecting the correct member sizes for your project.
All compliant structural timber sold in Australia must carry a visible grade stamp showing the species, stress grade (e.g., MGP10), H-class treatment (if applicable), and the certifying body's accreditation mark. This stamp is your assurance that the timber has been independently verified to meet AS 2082 (for visually graded hardwood) or AS/NZS 1748 (for machine-graded pine). At BuildBarn, every piece of structural timber is sourced from reputable Australian mills and carries full certification. We strongly advise against using unstamped or off-grade timber for structural applications — it creates significant safety risks and will fail council inspection.
For standard structural timber sizes — including Treated Pine MGP10 in 70×35, 90×35, 90×45, and 140×45 mm — BuildBarn holds large quantities in stock at our Hallam warehouse for same-day collection or next-day delivery across Melbourne. For bulk project orders, custom lengths, or large-volume requirements, we recommend placing your order 2–3 business days in advance to guarantee availability and allow us to arrange efficient delivery scheduling. Trade account holders benefit from priority dispatch, dedicated account management, and competitive trade pricing. Contact our team at 1800 979 678 to discuss your project requirements.