H3 CCA F7 Treated Pine – Structural Cladding Frame Timber

This kiln dried, structurally graded softwood is purpose designed for framing applications such as joists, bearers, plinths, rails 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

 70mm × 35mm , 90mm × 35mm

Standard Lengths

3.6 m, 4.2 m, 4.8 m, 5.4 m and 6.0 m 

Typical Uses

Cladding Frame Rails • Bearers • Stair stringers • Pergola rafters • Outdoor screens • Light framing where weather exposure is expected