How and where to use guide
3.0Mtr X 47 X 100mm C24 Treated Regularised KD Carcassing Timber
Floor joists and structural framing
The 47 × 100mm section is well-suited to floor joist applications in residential construction. C24 grade provides the strength and stability needed for load-bearing floors. The timber's consistent dimensions and planed finish simplify installation and ensure good contact with supporting members.
- Ideal for residential floor joists with standard spacing
- Superior strength compared to C16 grade for longer spans
- Regularised finish ensures consistent bearing and easier installation
- Treated protection extends durability in potentially damp sub-floor environments
Stud walls and partition framing
This timber is commonly used for internal and external stud wall construction. The 47mm width provides adequate strength for vertical load transfer, whilst the 100mm depth offers good nailing surface and structural stability. Treatment provides protection in external applications.
- Suitable for both internal partition walls and external stud framing
- 47mm width provides adequate nailing surface for sheathing and cladding
- C24 strength ensures reliable load-bearing performance
- Treatment protects external applications from weather exposure
Roof battens and decking frames
The section size and strength grading make this timber suitable for roof batten applications and decking frame construction. The treated finish provides protection in exposed locations, whilst the regularised dimensions ensure consistent fit and appearance.
- Suitable for roof batten applications in standard residential construction
- Appropriate for decking frame and joist applications
- Treatment provides protection in exposed outdoor environments
- Consistent dimensions aid installation and visual finish
Indoor and outdoor applications
The pressure treatment makes this timber suitable for both internal and external use. Internally, it performs well in standard building environments. Externally, the preservative treatment protects against moisture, rot, and insect attack, making it reliable for exposed construction work, decking, and outdoor framing.
- Suitable for internal structural applications in standard building conditions
- Treated protection makes it reliable for external and exposed locations
- Ideal for decking frames and outdoor construction projects
- Long-term durability in both wet and dry environments
Installation considerations
The regularised, planed finish of this timber makes it straightforward to install. Ensure adequate bearing on supporting members, typically a minimum of 40mm. Use appropriate fixings for your application—nails, screws, or bolts depending on the structural requirements. In external applications, allow for natural movement due to moisture changes.
- Planed finish simplifies handling and installation
- Ensure minimum 40mm bearing on supporting members
- Use fixings appropriate to structural requirements
- Allow for natural timber movement in external applications