4x2 Treated Timber C24 Regularised Sawn Joist 47x100mm- 2.4m

4x2 treated timber joists are 47x100mm in size (finished size approx. 45x95mm) and available in various lengths. Made from high quality, responsibly sourced timber from FSC certified forests. Each 4x2 treated timber length is kiln dried for straightness and strength, and treated for resistance to moisture and pests. C24 grading ensures superior load-bearing capacity and minimal deflection.

Available Lengths 2.4m | 3.0m | 3.6m | 4.8m

• Regularised dimensions: 45×95mm finished size with eased corners for uniformity and ease of handling.
• Kiln dried: Enhanced strength, stability, and straightness.
• Sawn face texture: Provides excellent key for membranes, adhesives, and coatings.
• FSC certified: Responsibly sourced from certified forests.
• For use in exterior and structural applications.
• C24 strength grade.
• Strength grading: BS EN 14081 / EN 338.
• Conforms to: BS 4978 and EN 14081:2006.

This timber is commonly used as floor joists and trimmers for structural support, stud walls and plates for internal partitions, rafters and ceiling joists in pitched roof construction, and subframes for raised decking with drainage clearance.

For proper installation, use exterior-rated fixings and hangers compatible with treated timber, re-seal all cut ends and notches with an appropriate end-grain sealer, and ensure the timber is only used in dry internal or covered external locations above ground

Important: Finished dimensions are typically slightly under nominal sizes approximately 2mm less in thickness and 5mm less in width. Color and surface appearance vary naturally and between treatment batches. Always seal cut ends and notches with a suitable end-grain sealant.