How and where to use guide
3.6Mtr X 75 X 150mm C24 Treated Regularised KD Carcassing Timber
Floor joists and structural framing
The 75 × 150mm section is commonly used for floor joists in residential construction. The C24 grade provides the load-bearing capacity required for domestic floor spans, whilst the treated finish offers protection in areas prone to moisture. Ensure joists are adequately supported at bearing points and spaced according to your structural design. Ventilation beneath suspended floors is essential to prevent moisture accumulation.
- Ideal for residential floor joists with appropriate span calculations
- Provides reliable load-bearing performance for domestic applications
- Treatment protects against decay in areas of potential moisture exposure
Roof battens and roof structures
C24 timber is suitable for roof battens, purlins, and general roof framing where structural performance and durability are required. The treatment provides protection in the exposed roof environment, whilst the strength grade ensures adequate load capacity for roof loads including snow and wind. Ensure adequate ventilation in roof spaces to manage moisture.
- Suitable for roof battens and structural roof members
- Treatment protects against weather exposure and moisture
- Strength grade supports typical domestic roof loads
Stud walls and partition framing
This timber is well-suited to stud wall construction for both external and internal partitions. The planed finish provides a clean appearance and ease of installation, whilst the C24 grade ensures adequate strength for wall framing. External stud walls benefit from the treatment, which protects against moisture ingress and decay. Ensure adequate bracing and lateral support according to your structural design.
- Suitable for external and internal stud wall framing
- Planed finish simplifies installation and provides professional appearance
- Treatment protects external walls against weather and moisture
Decking frames and outdoor structures
The pressure treatment makes this timber suitable for decking frames, garden structures, and other outdoor applications. The C24 grade provides the structural strength required for load-bearing outdoor construction. Ensure adequate drainage and ventilation beneath decking, and use corrosion-resistant fixings to prevent staining or degradation. Regular inspection and maintenance will extend the service life of outdoor structures.
- Pressure treatment provides protection for outdoor exposure
- Suitable for decking frames and garden structures
- Use corrosion-resistant fixings to prevent staining or decay
General construction and building work
Beyond the applications listed above, C24 Treated Carcassing Timber is suitable for general structural timberwork where strength, durability, and reliability are required. The combination of strength grading, treatment, and planed finish makes it a dependable choice for professional builders and experienced DIY users. Always verify that the timber specification meets your building control requirements and structural design.
- Versatile for a range of structural applications
- Meets current BS EN standards for building work
- Suitable for both professional and serious DIY projects