Treated Pine Framing Timber Melbourne
Structural treated pine for outdoor framing, decking, pergolas and fencing. Supplying Ravenhall, Caroline Springs, Derrimut, Melton and the wider western suburbs. Trade and public welcome.
Treated Pine Framing Timber Range
Full range of structural sizes in stock. Shop online or pick up directly from our 3 Melbourne warehouses today.
Why Choose H3 Treated Pine?
H3 treated pine is the most widely used structural timber for outdoor applications across Melbourne's western suburbs. The H3 hazard level rating means it has been pressure-treated with a copper-based preservative, giving it strong resistance to decay and insect attack when used above ground in exposed outdoor conditions.
It is the go-to choice for decking subframes, pergola posts, and fence rails. Whether your site is in Ravenhall, Melton, or the inner city, 5Star Fencing & Decking Supplies sources quality H3 treated pine and supplies it wholesale direct to both trade and the general public.
What Is Treated Pine Framing Timber Used For?
From decking frames to fence rails, treated pine is Melbourne's most versatile outdoor structural timber.
Decking Subframes
Treated pine is the standard choice for deck joists, bearers, and posts exposed to outdoor weather. 90x45mm for joists, 140x45mm or 190x45mm for bearers.
Pergola Framing
Posts, beams and rafters for outdoor pergolas and shade structures. 90x90mm posts and 140x45mm rafters are the standard combination.
Fencing Rails
Horizontal rails and top caps for timber paling fences. 90x45mm and 70x45mm are the most common fence rail sizes.
Garden Edging
Low-profile garden bed edging and above-ground retaining applications. 70x35mm and 90x35mm are easy to cut and install on site.
Structural Framing
Outdoor sheds, carports, and covered areas requiring structural members exposed to weather. 140x45mm and 190x45mm for main structural members.
Landscaping Timber
Steps, edging, and general landscaping timberwork that sits above ground but gets regular weather exposure. Versatile across all sizes.
Treated Pine Sizes & Specifications
Common sizes stocked at Ravenhall and Mickleham. Contact store to confirm current availability.
| Size (mm) | Common Length | Typical Use | Treatment | Finish |
|---|---|---|---|---|
| 70 × 35 | 5.4m / 6.0m | Battens, noggings, light framing | H3 | Green tint |
| 70 × 45 | 3.6m / 4.8m / 5.4m / 6.0m | Lightweight framing, garden structures | H3 | Green tint |
| 90 × 35 | 3.6m / 4.8m / 5.4m / 6.0m | Noggings, battens, frame infill | H3 | Green tint |
| 90 × 45 | 3.6m / 4.8m / 5.4m / 6.0m | Deck joists, fence rails, framing | H3 | Green tint |
| 140 × 45 | 3.6m / 4.8m / 5.4m / 6.0m | Bearers, pergola rafters | H3 | Green tint |
| 190 × 45 | 3.6m / 4.8m / 5.4m / 6.0m | Long span bearers, large deck framing | H3 | Green tint |
| 90 × 90 | 2.7m / 3.0m / 3.6m | Pergola posts, structural columns | H3 | Green tint |
Which Size Treated Pine Do I Need?
Choosing the right size for your job saves time and money. Here's the practical guide Melbourne builders and DIYers use.
70 × 35mm
The lightest structural size. Used for noggings between studs, garden bed edging, timber battens, and light infill framing. Easy to handle and cut on site.
70 × 45mm
Ideal for lightweight outdoor frames, garden structures, and smaller pergola infill. Good balance of weight and strength for domestic DIY projects.
90 × 35mm
Suits outdoor noggings, horizontal battens, and frame infill where width matters more than depth. Common in fence panel and screen framing.
90 × 45mm
Melbourne's most popular treated pine size. The standard for deck joists up to 1800mm span, fence rails, and general outdoor structural framing. Used by builders and tradies every day.
140 × 45mm
The go-to size for deck bearers, pergola rafters, and medium span structural members. Handles spans up to around 2400mm depending on load and spacing.
190 × 45mm
For large deck bearers, long pergola beams, and spans requiring extra depth. The choice for bigger structural jobs where 140x45 is not sufficient for the span or load.
Treated Pine Framing Timber — The Melbourne Builder's Choice
Treated pine framing timber is the backbone of outdoor construction across Melbourne. From Ravenhall to Pakenham, the vast majority of decks, pergolas, fences and garden structures built in Melbourne's western and northern suburbs use treated pine as their primary structural material. It is affordable, widely available, easy to work with, and when correctly specified, it performs reliably in Melbourne's climate for decades.
What Makes Treated Pine Suitable for Outdoor Use?
Pine in its natural, untreated state is susceptible to fungal decay and insect attack when exposed to moisture and soil contact. The treatment process — pressure-impregnating the timber with a copper-based preservative solution — changes this fundamentally. The preservative penetrates deep into the wood cells, providing long-term protection against the conditions that cause timber to fail prematurely outdoors.
The H3 hazard level classification specifically means the timber has been treated to perform in above-ground outdoor applications that are exposed to the weather. This covers the full range of common Melbourne outdoor building projects: deck framing, pergola structures, fence rails, and garden timber work.
H3 vs H4 — Knowing the Difference Matters
H3 treated pine is rated for above-ground outdoor use only — it should never be placed in direct contact with the ground or embedded in concrete. For fence posts, retaining wall posts, or any application where the timber goes into the ground, H4 treated pine is required. H4 carries a higher preservative retention level specifically to handle in-ground conditions. Using H3 in the ground will lead to premature failure. 5Star Fencing & Decking Supplies stocks both H3 and H4 across all three Melbourne locations.
Working With Treated Pine on Site
Treated pine is straightforward to work with using standard timber tools. Key site practices that extend service life: always seal cut ends with an end-grain sealer immediately after cutting, as the treatment does not fully penetrate the end grain. Use hot-dipped galvanised or stainless steel fasteners — standard bright steel fasteners will corrode rapidly in contact with treated timber's copper compounds. When painting or staining, allow new treated pine to dry and weather for at least four weeks before applying coatings.
Treated Pine Timber — Areas We Supply
3 warehouse locations across Melbourne mean fast access to treated pine framing timber for builders and DIYers across the city.
Ravenhall & Derrimut
Our Ravenhall warehouse at 51 Eucumbene Drive serves the western industrial corridor including Derrimut, Sunshine West and Truganina.
Caroline Springs & Melton
Caroline Springs and Melton builders and DIYers are minutes from our Ravenhall store. Wholesale treated pine available same day.
Tarneit & Werribee
Serving the fast-growing Tarneit and Werribee corridor. Structural framing timber in stock for new builds and renovation projects.
Sunshine & Albion
Close access for Sunshine, Albion and Deer Park trades and builders. Full range of treated pine sizes available for pick up.
Mickleham & Craigieburn
Our Mickleham warehouse at 1 Forefront Drive serves the rapidly growing northern corridor including Craigieburn and Kalkallo.
Epping & Donnybrook
Trade and public customers from Epping, Donnybrook and surrounding northern suburbs can pick up direct from our Mickleham warehouse.
Pakenham & Berwick
Our Pakenham warehouse at Koo Wee Rup Road serves the south-eastern growth corridor including Officer, Beaconsfield and Berwick.
Narre Warren & Cranbourne
Narre Warren and Cranbourne builders are well serviced by our Pakenham location. Treated pine framing in stock across all sizes.
Treated Pine Framing Timber — Frequently Asked Questions
Questions Melbourne builders and DIYers ask most about treated pine framing timber.
Where can I buy treated pine framing timber in Melbourne's Western Suburbs?
You can buy treated pine framing timber directly from 5Star Fencing & Decking Supplies at our Ravenhall warehouse (51 Eucumbene Dr). Open to the public and trade, servicing Ravenhall, Caroline Springs, Derrimut, Melton and the wider western suburbs.
What size treated pine do I need for deck joists?
For deck joists, 90x45mm treated pine is the most commonly used size for spans up to 1800mm. For longer spans or heavier loads, 140x45mm is recommended. For deck bearers, 140x45mm or 190x45mm is standard depending on span. Always check your local council requirements and building code for structural specifications.
What is the difference between H3 and H4 treated pine?
H3 treated pine is rated for above-ground outdoor use — decking subframes, pergola framing, fence rails and outdoor structural framing. H4 treated pine has a higher preservative retention and is designed for in-ground contact, such as fence posts and retaining wall applications. Never use H3 in direct ground contact — it will fail prematurely.
What treated pine sizes do you stock in Melbourne?
5Star Fencing & Decking Supplies stocks a full range including 70x35mm, 70x45mm, 90x35mm, 90x45mm, 140x45mm, 190x45mm and 90x90mm posts. Available in lengths from 3.6m to 6.0m across our Ravenhall, Mickleham and Pakenham warehouses.
Can I use treated pine for pergola posts?
Yes. 90x90mm treated pine posts are the standard choice for pergola uprights and structural columns in above-ground outdoor applications. They are pressure-treated to resist decay and insect attack in exposed outdoor conditions. If the post is going into the ground or set in concrete, H4 treatment is required instead.
Is treated pine suitable for fence rails?
Yes. 90x45mm and 70x45mm H3 treated pine are the standard sizes for horizontal fence rails on timber paling fences. H3 treatment provides adequate above-ground protection for fence rail applications. For fence posts that go into the ground, H4 treated pine is required.
How long does treated pine last outdoors in Melbourne?
H3 treated pine used above ground in Melbourne's climate typically lasts 15 to 25 years with basic maintenance. Sealing cut ends at installation, using the correct fasteners, and applying a timber oil or stain every few years significantly extends service life. Keeping timber off direct ground contact also makes a large difference.
Do you supply treated pine to trade customers?
Yes. 5Star Fencing & Decking Supplies supplies both trade and public customers from our 3 Melbourne warehouses in Ravenhall, Mickleham and Pakenham. Call 0444 527 142 to discuss trade pricing and account options.
What lengths does treated pine framing timber come in?
Treated pine framing timber is available in set lengths of 3.6m, 4.8m, 5.4m and 6.0m. Some sizes are also available in 2.7m and 3.0m lengths. Contact your nearest 5Star Fencing & Decking Supplies warehouse to confirm current length availability for your required size.
Why Melbourne Builders Choose 5Star Fencing & Decking Supplies
5Star Fencing & Decking Supplies operates three warehouse locations across Melbourne — Ravenhall, Mickleham and Pakenham — giving builders, tradies and DIYers fast access to treated pine framing timber without the wait times or minimum order requirements of larger suppliers.
We supply wholesale direct to the public, which means the same pricing trade customers receive is available to anyone walking through the door. No account required, no minimum order. Whether you need 5 lengths for a small garden project or 500 lengths for a new build, our team can assist.
What Our Customers Say
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