How and where to use guide
3.6Mtr X 47 X 175mm C24 Treated Regularised KD Carcassing Timber
Floor joists and structural framing
This timber is commonly used for floor joists in residential and commercial buildings. The C24 strength grade provides superior load-bearing capacity compared to lower grades, making it suitable for supporting floor loads. It is also used in roof battens and general structural framing where consistent strength and stability are required.
- Floor joists in residential and commercial buildings
- Roof battens and roof framing
- Structural wall framing and stud walls
- Load-bearing applications requiring C24 strength
Outdoor construction and decking
The pressure treatment makes this timber suitable for outdoor applications including decking frames, garden structures, and external building work. It resists rot and decay, allowing it to perform reliably in damp or exposed conditions where untreated timber would fail. Ideal for projects in contact with soil or subject to weather exposure.
- Decking frames and outdoor structures
- Garden buildings and sheds
- External construction work
- Applications in contact with ground or damp conditions
Indoor applications
Within buildings, C24 treated carcassing timber is used for floor joists, ceiling joists, and internal structural framing. The regularised finish provides a clean appearance suitable for visible applications, whilst the strength grade ensures reliable performance in load-bearing roles. Kiln-dried condition minimises movement and warping.
- Floor and ceiling joists
- Internal stud walls and partitions
- Structural framing in residential and commercial buildings
- Applications where appearance and stability matter
Advantages over lower grades
C24 timber offers enhanced stability, fewer knots, and improved strength compared to C16 carcassing timber. This makes it the preferred choice for applications where load-bearing capacity and long-term reliability are critical. The pressure treatment adds durability, extending the service life of the structure.
- Superior strength and load-bearing capacity
- Fewer knots and enhanced stability
- Better performance in demanding applications
- Pressure treatment extends service life
Planning your project
Before purchasing, confirm the required timber dimensions and length from your structural design or building plans. Consider the spacing and fixing requirements specified in your design. Ensure you have adequate storage space and that the timber can be delivered and handled safely. For structural work, always comply with current building regulations and seek professional advice if required.
- Verify dimensions and length from your design
- Confirm spacing and fixing requirements
- Plan storage and delivery logistics
- Comply with building regulations for structural work