Best current price£59.40from B&Q
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B&Q£59.40Visit shop - 22mm X 150mm Green Treated Sawn Carcassing Timber (6" X 1") 1800mm (X5 Lengths)
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Designed for DIY enthusiasts and landscapers, this B&Q Green Treated Sawn Carcassing Timber is an essential structural element for outdoor construction projects, specifically optimized for use as a gravel board. The key benefit of this product is its pressure-treated durability, which effectively resists rot and moisture damage when placed against the ground, though users should note that the softwood material requires periodic re-treatment if cut to ensure long-term integrity.
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Yes, they are suitable for raised beds, but ensure you line the inside with a waterproof membrane to further protect the timber from continuous damp soil contact.
The green tint is caused by the preservative treatment. It will fade to a silver-grey over time when exposed to UV light, which is normal and does not affect the rot resistance.
We recommend using galvanised or stainless steel nails and screws to prevent the metal from corroding due to the chemicals used in the pressure treatment process.
These are designed as carcassing timber or gravel boards, not as decking boards. They lack the smooth finish and structural profile required for foot traffic.
Store them in a flat, dry, and well-ventilated area, preferably raised off the ground to prevent moisture accumulation before installation.
Immediately sand the area and apply a generous coat of high-quality exterior wood preservative.
Ensure the board is securely fixed at both ends to the fence posts using at least two screws per connection point to maintain tension.
Pre-drill pilot holes with a slightly smaller diameter than the screw shank to prevent splitting the softwood.
To install, ensure your fence posts are set at appropriate intervals and use galvanised screws or nails to prevent rust. When cutting the timber to length, it is critical to apply a wood preservative to the freshly cut ends; this seals the wood where the factory-applied pressure treatment has been compromised. For ongoing care, consider applying an exterior-grade wood stain or weather-resistant treatment annually to prevent surface cracking and maintain the wood's appearance.
