Fixing and buying guide
6.0Mtr X 47 X 150mm C24 Treated Regularised KD Carcassing Timber
Selecting the right size
This product is supplied as 6.0 metre lengths with a finished section of 47 × 150mm. C24 timber is graded for superior load-bearing performance compared to C16, making it suitable for floor joists, roof battens, stud walls, and decking frames. Consider your span requirements and load conditions when determining how many lengths you need.
- 47 × 150mm section provides good strength-to-weight ratio for most domestic and light commercial applications
- 6.0 metre length allows flexibility in cutting to suit standard joist spacings and wall heights
- Regularised finish means consistent sizing across all pieces for easier installation
Pressure-treated protection
All pieces are pressure-treated with preservative to resist rot, fungal decay, and insect attack. This treatment extends the timber's lifespan significantly, particularly in damp conditions or outdoor exposure.
- Suitable for both internal and external applications
- Treatment provides long-term durability without need for on-site coating
- Kiln-dried (KD) to reduce moisture content and minimise movement after installation
Storage and handling
Proper storage protects your timber investment and ensures quality at installation. Store in a dry location, keeping pieces flat and well-ventilated to maintain the kiln-dried moisture content.
- Stack horizontally with spacers between layers to allow air circulation
- Protect from direct weather exposure, particularly rain and standing water
- Handle with care to avoid damage to the planed finish
Quantity planning
Calculate your requirements based on joist spacing, wall stud spacing, and project layout. Standard spacings are typically 400mm or 600mm centres for joists, and 400mm or 600mm centres for stud walls.
- Measure your total run length and divide by your chosen spacing to determine piece count
- Add 5–10% extra for cutting waste and site contingency
- Consider whether you need additional pieces for blocking, nogging, or bracing