How and where to use guide
2.4Mtr X 47 X 100mm C24 Treated Regularised KD Carcassing Timber
Floor joists and suspended floors
This timber is commonly used for floor joists in domestic properties. The 47 × 100mm section is suitable for typical residential floor spans when spaced at standard centres (typically 400mm or 600mm). Ensure joists are adequately supported at each end and that any intermediate support is provided according to your structural design. Proper ventilation beneath suspended timber floors is essential to prevent moisture accumulation.
- Ideal for residential floor joists at standard spacing
- Ensure adequate bearing at each end and intermediate supports
- Maintain ventilation beneath suspended floors to prevent decay
- Check building regulations and structural specifications for span and spacing requirements
Stud walls and partitions
C24 timber is well-suited for timber-frame stud walls and internal partitions. The regularised finish provides a clean, planed surface that is easy to work with and presents well when exposed. Studs should be fixed securely to top and bottom plates, and lateral bracing should be provided according to building regulations and structural design.
- Suitable for load-bearing and non-load-bearing stud walls
- Regularised finish provides a professional appearance
- Ensure proper fixing to top and bottom plates
- Provide lateral bracing as required by building regulations
Roof battens and roof framing
This timber can be used for roof battens, rafters, and roof framing in appropriate applications. The treatment provides protection in the exposed roof environment, and the C24 grade ensures adequate strength for typical residential roof loads. Always follow your structural design and building regulations when installing roof timberwork.
- Suitable for roof battens and rafter applications
- Treatment provides protection in exposed roof environments
- Ensure spacing and fixing comply with structural design and building regulations
- Consider ventilation requirements in roof spaces
Decking frames and outdoor structures
The pressure treatment makes this timber suitable for outdoor applications such as decking frames, garden structures, and external cladding frames. The treatment protects against weather exposure, rot, and insect attack. Ensure adequate drainage and ventilation around outdoor timberwork, and consider additional protection such as paint or stain for exposed surfaces.
- Pressure treatment makes it suitable for outdoor use
- Ideal for decking frames, pergolas, and garden structures
- Ensure good drainage and ventilation around outdoor timberwork
- Consider additional surface protection such as paint or stain for exposed faces
General construction and building work
Beyond the specific applications above, C24 Treated Carcassing Timber is suitable for general structural timberwork where a reliable, durable material is required. Its strength grade, treatment, and regularised finish make it a dependable choice for both professional builders and serious DIY projects. Always ensure that your application complies with current building regulations and any relevant structural specifications.
- Versatile for general structural timberwork
- Suitable for both indoor and outdoor applications
- Meets BS EN standards for structural timber
- Consult building regulations and structural engineers for specific applications