How and where to use guide
6.0Mtr X 47 X 125mm C24 Treated Regularised KD Carcassing Timber
Floor joists and suspended floors
This timber is ideal for floor joists in residential and light commercial buildings. The 47 × 125mm section provides good strength-to-weight ratio for typical domestic floor spans. Ensure joists are adequately supported at bearing points and spaced according to your structural design. Treatment provides protection against moisture ingress from below, extending the life of the floor structure.
- Suitable for suspended timber floors in houses and small buildings
- Provides good load-bearing capacity for domestic live loads
- Treatment protects against moisture from ground or external exposure
- Verify span and spacing requirements with your structural design
Stud walls and partitions
C24 timber is commonly used for vertical studs in timber-frame construction and internal partitions. The consistent quality and strength of C24 grade ensures reliable performance in wall assemblies. Treatment is particularly beneficial where walls may be exposed to moisture or where durability is a concern, such as in kitchens, bathrooms, or external-facing walls.
- Suitable for load-bearing and non-load-bearing stud walls
- Provides stable framework for plasterboard and other finishes
- Treatment offers protection in high-moisture areas
- Ensure adequate bracing and connections to meet building regulations
Roof battens and roof structures
This timber works well as roof battens for tile or slate hanging, and as structural members in roof trusses and rafters. The treatment provides protection against moisture and decay in the roof void, extending the life of the structure. Ensure adequate ventilation in roof spaces to manage condensation and maintain timber health.
- Suitable for roof battens supporting tiles or slates
- Can be used as rafters or structural members in roof assemblies
- Treatment protects against moisture in roof voids
- Ensure adequate ventilation to prevent condensation issues
Decking frames and outdoor structures
The pressure treatment makes this timber suitable for outdoor applications such as decking frames, pergolas, and garden structures. The treatment protects against rot and insect attack in exposed conditions. Ensure adequate drainage and ventilation around outdoor timber to maximise the life of the treatment and prevent water pooling.
- Ideal for decking subframes and outdoor structural work
- Treatment provides long-term protection in exposed conditions
- Ensure good drainage and ventilation around outdoor timber
- Use corrosion-resistant fixings to prevent staining and degradation
General construction and building work
Beyond the specific applications above, C24 Treated Carcassing Timber is suitable for general structural timberwork where strength, stability, and durability are required. Its consistent quality and treatment make it a reliable choice for both professional builders and serious DIY projects. Always verify that the timber meets the requirements of your specific application and local building regulations.
- Suitable for a wide range of structural applications
- Meets BS EN standards for structural use
- Consistent quality reduces variability in performance
- Consult building regulations and structural design for your specific use