Treated Pine
Treated pine sizes in Melbourne Greenhill Timbers stocks H3 LOSP treated pine in MGP10 structural grade at our yard at 170 Settlement Road, Thomastown, with pickup or delivery across Melbourne and regional Victoria. Every size below comes in 3.6, 4.2, 4.8, 5.4 and 6.0 m lengths, and we cut to length. Treated pine sizes we stock 70 × 45 mm...
Treated pine sizes in Melbourne
Treated pine sizes we stock
70 × 45 mm for battens, noggings and light framing. 90 × 45 mm for wall frames, deck joists on short spans and fence rails. 140 × 45 mm for deck joists and bearers. 190 × 45 mm for bearers, pergola beams and longer joist spans. 240 × 45 mm and 290 × 45 mm for beams and rafters. For a low deck, Lowdeck GL8 H4 in 88 × 44 and 138 × 44 mm is treated to H4 for ground contact.
What H3 and MGP10 mean
H3 is the hazard level for timber used outside, above ground and exposed to the weather: decks, pergolas, fences and external framing. It is not for timber in the ground; for posts in soil, use H4 or set them in stirrups. MGP10 is the machine-graded stress grade used for house framing, so spans can be read straight from the AS 1684 span tables. LOSP is a solvent-based treatment that leaves the pine dry, light and paintable, and cut ends should be resealed.
Going with it
Concrete stumps, Rapid Set and PRO50 concrete, galvanised joist hangers in every size above, strapnails, bugle screws and VapourSeal joist tape are all under decking accessories; posts and stirrups are under structural posts. For pre-primed pine for pergolas, fascias and verandahs, see LOSP primed pine. Call 03 9465 9875, Mon–Fri 7am–4:30pm, Sat 9am–1pm.
Building a fence? Our picket fencing page puts pickets, posts, rails, stirrups and fence finishes in one place.
Treated pine sizes and prices
Prices as at 19 October 2026, including GST, for pickup from 170 Settlement Road, Thomastown; delivery across Melbourne and regional Victoria is quoted on the order. Stock and prices change, so the product page has the current figure.
Treated Pine 70x45 MGP10 H3 LOSP: 1 m $5.56, 3.6 m $20.02, 4.2 m $23.35, 4.8 m $26.69, 5.4 m $30.02, 6 m $33.36 per length.
Treated Pine 90x45 MGP10 H3 LOSP: 1 m $7.43, 3.6 m $26.75, 4.2 m $31.21, 4.8 m $35.66, 5.4 m $44.58, 6 m $44.58 per length.
Lowdeck GL8 H4 138x44mm Treated Pine: $136.86 per length.
Treated Pine 140x45 MGP10 H3 LOSP: 1 m $10.35, 3.6 m $37.26, 4.2 m $43.47, 4.8 m $49.68, 5.4 m $55.89, 6 m $62.10 per length.
Treated Pine 190x45 MGP10 H3 LOSP: 1 m $13.82, 3.6 m $49.75, 4.2 m $58.04, 4.8 m $66.34, 5.4 m $74.63, 6 m $82.92 per length.
Treated Pine 240x45 MGP10 H3 LOSP: 1 m $19.41, 3.6 m $69.88, 4.2 m $81.52, 4.8 m $93.17, 5.4 m $104.81, 6 m $116.46 per length.
Treated Pine 290x45 MGP10 H3 LOSP: 1 m $27, 3.6 m $97.20, 4.2 m $113.40, 4.8 m $129.60, 5.4 m $145.80, 6 m $162 per length.
Lowdeck GL8 H4 88x44mm Treated Pine: $91.61 per length.
LifeCore H3V 140x45 Treated LVL Framing: 3.6 m $40.86, 4.2 m $47.67, 4.8 m $54.48, 5.4 m $61.29, 6 m $68.10 per length.
LifeCore H3V 190x45 Treated LVL Framing: 3.6 m $53.35, 4.2 m $62.24, 4.8 m $71.14, 5.4 m $80.03, 6 m $88.92 per length.
LifeCore H3V 240x45 Treated LVL Framing: 3.6 m $73.48, 4.2 m $85.72, 4.8 m $97.97, 5.4 m $110.21, 6 m $122.46 per length.
LifeCore H3V 290x45 Treated LVL Framing: 3.6 m $100.80, 4.2 m $117.60, 4.8 m $134.40, 5.4 m $151.20, 6 m $168 per length.
LifeCore H3V 70x35 Treated LVL Framing: 6 m $24.66 per length.
LifeCore H3V 70x45 Treated LVL Framing: 6 m $39.36 per length.
LifeCore H3V 90x35 Treated LVL Framing: 6 m $32.88 per length.
LifeCore H3V 90x45 Treated LVL Framing: 3.6 m $30.35, 4.2 m $35.41, 4.8 m $40.46, 5.4 m $45.52, 6 m $50.58 per length.
Treated Post 88x88 H4 GL CCA: 2.4 m $51.55, 2.7 m $58, 3 m $64.45, 3.3 m $70.90, 3.6 m $77.35, 4.2 m $90.25, 4.8 m $103.15, 5.4 m $116, 6 m $128.90 per post.
Treated Post 112x112 H4 GL CCA: 2.4 m $98.80, 2.7 m $111.15, 3 m $123.50, 3.6 m $148.20, 4.2 m $172.90, 4.8 m $197.60, 5.4 m $222.30, 6 m $247 per post.
Treated Post 135x135 H4 GL CCA: 2.4 m $139, 2.7 m $156.40, 3 m $173.80, 3.6 m $208.55, 4.2 m $243.30, 4.8 m $278.05, 5.4 m $312.80, 6 m $347.60 per post.
Treated Post 185x185 H4 GL CCA: 2.7 m $537.95, 3 m $597.70, 3.6 m $717.25 per post.
Related ranges
Related: MGP10 framing pine, LVL beams, posts, LOSP primed pine, stirrups, joist hangers and screws, hardwood decking, picket fencing.
Questions we get asked about treated pine
What does H3 treated pine mean?
H3 is the hazard class for timber used outside, above the ground, exposed to the weather. It covers deck frames, pergolas, fence rails and cladding battens. Timber in the ground needs H4.
How long does H3 treated pine last?
Decades above ground as long as it can dry out and is not sitting in soil or standing water. In the ground it fails early, which is what H4 posts are for. Our H3 treated pine guide covers the details.
Can I paint or stain LOSP treated pine?
Yes. LOSP treatment is paint-friendly once the timber is dry, which is why the primed LOSP range exists. Oil or paint every face and cut end.
Is treated pine safe for vegetable garden beds?
Avoid CCA-treated timber for vegetable beds. Ask us for an LOSP or non-CCA H4 option if the timber will touch soil the food grows in.
What MGP10, F7 and H3 mean is explained in our timber grades guide.
New in the yard: LifeCore H3V, an H3-treated LVL sold as a direct substitute for H3 MGP10 treated pine, with the treatment through every veneer so cut ends need sealing, not re-treating.
About Treated Pine
Treated pine in Melbourne
Treated pine is radiata pine with a preservative treatment, graded for structural use. The treatment level is the thing to get right: H3 is for timber above the ground and exposed to weather, such as deck joists, pergolas, fence rails and cladding battens; H4 is for timber in the ground, such as posts and plinths. H3 in the ground fails early.
| Grades | MGP10 (machine graded, AS/NZS 1748) for framing; GL8 laminated for Lowdeck bearers; GL CCA for posts |
|---|---|
| Treatment | H3 LOSP (paintable, kiln dried) for above ground; H4 CCA for in-ground |
| Where it suits | Deck frames, pergolas, carports, fences, posts |
What we stock
H3 LOSP MGP10 in 70 × 45, 90 × 45, 140 × 45, 190 × 45, 240 × 45 and 290 × 45 mm, priced per length from $5.56 per metre. Lowdeck GL8 H4 bearers in 88 × 44 and 138 × 44 mm for low decks and plinths. H4 GL CCA posts in 88 × 88 and 112 × 112 mm, with 135 and 185 mm in the posts range, and LifeCore H3V treated LVL for long spans in treated pine. Every size and length with its price is on the treated pine page.
Using it
LOSP treated pine is paint-friendly once dry; oil or paint every face and cut end, and re-treat cut ends with a brush-on preservative. Avoid CCA-treated timber for vegetable beds. Guides: H3 treated pine guide, treated pine vs hardwood, treated pine decking. Frame hardware is in decking accessories.
Stocked at 170 Settlement Road, Thomastown, with pickup or delivery across Melbourne and regional Victoria. Call (03) 9465 9875 with your sizes and we will quote the job.