47mm x 75mm (3 x 2) - Sawn Kiln Dried & Regularised C24 Graded Timber

47mm x 75mm (3 x 2) Sawn Kiln Dried & Regularised C24 Graded Timber is a high-strength structural carcassing timber designed for applications where a lighter section is required but reliable load performance is still essential. Strength graded to C24, this timber offers improved structural capability compared to standard C16 timber and CLS.

C24 carcassing timber is kiln dried to 20% moisture content or less, helping improve straightness, stability, and overall performance in line with UK building regulations. Stress grading is carried out either at source to BS 4978 or visually by qualified stress graders, ensuring consistent and dependable structural quality.

This timber is regularised, meaning it has been planed all round for consistent sizing and easier installation. Regularised timber typically finishes 2mm off nominal thickness and 5mm off nominal width, with eased (rounded) corners for safer handling. A nominal 47mm x 75mm section finishes at approximately 45mm x 70mm.

Typical uses for 47mm x 75mm (3 x 2) C24 timber include:

• Internal stud partitions and non-loadbearing walls

• Noggins and bracing between studs or joists

• Light roof framing and ceiling joists

• Shed, garage, and outbuilding construction

• Structural applications where C16 or CLS may be insufficient

This size is commonly chosen where space is limited but structural reliability is still required, making it popular for both professional construction and higher-spec DIY projects.

Although timber sizes are listed in metric to comply with UK retail standards, imperial equivalents are shown for ease of identification. Always use metric measurements when setting out and installing.

How does 3 x 2 C24 compare to C16 or CLS timber?

• Most CLS timber in the UK is graded at C16

• C16 and C24 are the most common strength-graded timbers

• C24 is graded to a higher standard than C16

• C24 timber comes from slower-grown timber with a tighter grain

• C24 is approximately 50% stronger than C16

• Better suited to structural framing and regulated applications than CLS

Nominal size: 47mm x 75mm (3 x 2)
Finished size: approximately 45mm x 70mm
Grade: C24 strength graded
Condition: Kiln dried & regularised
Use: Structural carcassing timber