Decking Subframe Timber H3 - CCA F7 Treated Pine (Above Ground Exterior Use)

2025-06-16T10:54:02+08:00

Type:
Price: 28.04 - 134.72 (34 variants)

H3 CCA F7 Treated Pine – Structural Sub-Frame Timber

This kiln dried, structurally graded softwood is purpose designed for sub-frame applications such as joists, bearers, plinths and pergola beams where long term strength and durability outdoors are essential.

What “H3 – CCA F7” Means

H3 Hazard Class – treated for above ground exterior use where timber is exposed to the weather but can dry out between wetting cycles. Ideal for decks, verandas and garden structures.

CCA Treatment (Copper Chrome Arsenate) – preservative salts penetrate the wood cells, protecting against fungal decay, rot, termites and other borers for decades of service life.

F7 Structural Grade – is a commonly specified stress grade that delivers sufficient bending strength and stiffness for residential decking frames and light structural work.

Key Benefits Of H3 – CCA F7 Treated Pine

Long-lasting resistance to moisture, insects and decay

Stable, kiln dried sections minimise movement and twisting

Lightweight and easy to cut, nail and screw

Fully compliant with Australian Standards for outdoor structural timber

Sustainably sourced plantation pine

Stocked Sizes (mm)

35 mm thick: 90×35, 120×35, 140×35, 190×35

45 mm thick: 90×45, 120×45, 140×45, 190×45

Standard Lengths

3.6 m, 4.2 m, 4.8 m, 5.4 m and 6.0 m

Typical uses

Decking joists • Bearers • Stair stringers • Pergola rafters • Outdoor screens • Light framing where weather exposure is expected