Extreme Timber | Treated Pine & Decking

Category Treated Pine & Decking

Type Structural Timber

Variants 7 available

Availability In Stock

Delivery Australia-wide

Variants

7 of 7

140x65 eXtreme Beam GL8 3.6-6.0m Request
190x65 eXtreme Beam GL8 3.6-6.0m Request
240x65 eXtreme Beam GL8 3.6-6.0m Request
290x65 eXtreme Beam GL8 3.6-6.0m Request
88x88 eXtreme Post CCA / C-Azole GL8 H4 DAR 2.4-6.0m Request
112x112 eXtreme Post GL8 H4 DAR 2.4-6.0m Request
135x135 eXtreme Post C-Azole GL8 H4 DAR (3.0, 3.6, 4.8, 6.0m) Request

Frequently asked questions

What is the eXtreme Timber range engineered for?

eXtreme Timber is a glue-laminated, H4-treated structural range built specifically for outdoor decks, verandahs and pergolas where the timber is exposed to severe weather and, in the case of posts, is in direct ground contact. The lamination process produces straighter, more dimensionally stable beams and posts than equivalent solid sections, while the H4 treatment provides the highest practical durability rating for structural timber outside flame zones.

What sizes of eXtreme Beam does Birak supply?

eXtreme Beams are stocked in GL8 grade in four cross-sections — 140x65, 190x65, 240x65 and 290x65 — all in 3.6–6.0m lengths. The 65mm thickness suits standard post connections and bolt patterns, while the wide depth range covers everything from a small alfresco beam through to long-span verandah and patio cover beams without resorting to steel or LVL.

How do eXtreme Posts compare to standard CCA posts?

eXtreme Posts are GL8 glue-laminated H4 in DAR profile, available in 88x88, 112x112 and 135x135. Compared to standard solid CCA posts, the lamination delivers a straighter section that is less likely to twist or check on site, and the DAR finish suits exposed architectural applications. They are H4 rated for ground contact and treated with CCA or C-Azole — engineered for retaining structures, deck posts and pergola uprights.

Does eXtreme Timber from Birak count toward IPP targets?

Yes. As a Supply Nation Registered Indigenous-owned supplier, Birak ensures every dollar of eXtreme Beam and eXtreme Post spend counts toward your organisation's 4% Indigenous Procurement Policy target. Audit-ready procurement documentation is provided automatically with every delivery, which is critical on government, defence and Tier-1 projects where structural timber forms a substantial portion of total spend and IPP reporting is mandatory.

Can Birak supply eXtreme Timber to projects in any state?

Yes. Most eXtreme Timber stockists operate within a single state and require multiple regional accounts to service a national project. Birak ships eXtreme Beams and Posts Australia-wide, with typical lead times of 5–10 business days for stocked sizes. Project quantities and bespoke length requirements can be coordinated under a single purchase order, which simplifies procurement on multi-site builds.