Decking Subframe Timber H4 - CCA F7 Treated Laminated Pine (Ground Contact - Extreme Joist)

2025-07-04T11:18:28+08:00

Type:
Price: 42.35 - 83.87 (3 variants)

Primed Laminated Dressed CCA H4 F7 Pine – Ground Contact Structural TimberPrimed

Laminated Dressed CCA H4 F7 pine is a straight, factory primed, ground rated treated timber, ideal for decking sub-frames. Use it for in ground posts, perimeter bearers, ledgers against masonry, and any joist or beam that sits on or touches concrete or soil.

What “Primed Laminated Dressed CCA H4 F7” means

H4 Hazard Class – Treated for permanent ground or fresh water contact. Resists fungal decay, termites and borers even when buried.

CCA Treatment – Copper Chrome Arsenate salts penetrate deep into the timber cells for decades long protection.

F7 Structural Grade – Reliable bending strength & stiffness for residential and light commercial loads.

Laminated – Multiple glued plies minimise twisting, cupping and bowing compared with solid timbers.

Dressed – Smooth, planed faces ready for precise fixing and a high quality painted finish.

Factory-Primed – Uniform, exterior grade undercoat already applied. Just lightly sand and top-coat.

Key benefits of Primed Laminated Dressed CCA H4 F7 Timber

Ground rated durability keeps bearers, ledgers and posts sound where they meet footings or soil.

Paint-ready surface saves hours of priming and improves top coat adhesion/longevity.

Easy machining – cuts, drills and screws like standard softwood.

Sustainably sourced plantation pine with low embodied carbon.

Stocked sizes (mm)

44mm x 44mm x 5400mm

68mm x 44mm x 5400mm

88mm x 44mm x 5400mm

Typical uses

Decking sub-frames (in-ground posts, bearers resting on footings, perimeter ledgers) • Fence & screen posts • Pergola and carport uprights • Retaining-wall sleepers/caps • Garden structures & raised-bed frames where timber contacts soil or concrete