Fixing and buying guide
4.2Mtr X 47 X 150mm C24 Treated Regularised KD Carcassing Timber
Selecting the right size
This product is supplied at 4.2 metres in length with a cross-section of 47 × 150mm. Verify your project requirements against these dimensions before purchase. C24 timber is suitable for applications including floor joists, roof battens, stud walls, and decking frames. Check your building plans or structural specifications to confirm the correct section size for your load-bearing requirements.
- Confirm length and cross-section match your project specifications
- C24 grade is suitable for structural and load-bearing applications
- Regularised finish means consistent sizing across all pieces
Understanding the treatment
This timber is pressure-treated with preservative to protect against rot, fungal decay, and insect infestation. The treatment provides long-term durability, making it suitable for both internal and external applications. The treatment is integral to the timber's performance in demanding environments.
- Pressure-treated for rot and decay resistance
- Suitable for outdoor and exposed locations
- Treatment extends service life significantly
Storage and handling
Store treated timber in a dry location, protected from prolonged exposure to standing water or ground contact. Allow adequate air circulation around stacked timber to prevent moisture accumulation. Handle with care to avoid damage to the planed finish, which aids installation and appearance.
- Keep timber dry and well-ventilated during storage
- Avoid prolonged ground contact without additional protection
- Protect from weather during transport and on-site storage
Fixing and installation
Use appropriate fixings for your application—typically galvanised or stainless steel nails, screws, or bolts to prevent corrosion when used with treated timber. Ensure fixings are compatible with the preservative treatment. Follow standard building practice for spacing, alignment, and securing to supporting structures. The smooth, planed finish makes handling and installation straightforward.
- Use corrosion-resistant fixings (galvanised or stainless steel)
- Follow building regulations and structural specifications
- Ensure proper spacing and alignment during installation
Compliance and standards
This timber meets current BS EN standards for structural timber. Verify that the product meets the requirements of your specific project and local building regulations before installation.
- Meets BS EN standards for structural timberwork
- Strength-graded to C24 for load-bearing applications
- Check local building regulations for your project