C24 150 x 50 Treated Timber (Finished Size 145mm x 45mm)

Our C24 150 x 50 treated timber (finished size 145mm x 45mm) offers outstanding structural strength, stability, and long‑term performance, ideal for heavy‑duty construction, decking subframes, garden structures, and any project that demands high‑grade, exterior timber.

C24 is a superior structural grade known for its density, strength, and reduced defects compared to C16, making it ideal for load‑bearing applications. The timber is pressure treated to UC4, meaning it is suitable for direct ground contact and frequently wet environments. UC4 is the correct class for external structural use where moisture exposure is unavoidable.

Thanks to kiln drying and regularisation, the boards provide consistent sizing, improved straightness, and eased edges, ensuring easier handling and a clean, professional finish.

Key Features of C24 150 x 50

• C24 structural grade for superior strength, stiffness, and load‑bearing performance.
• Finished size: 145mm x 45mm (nominal 150mm x 50mm).
• UC4 pressure treated, suitable for ground contact and long‑term outdoor exposure.
• Kiln dried & regularised for improved stability and uniform dimensions.
• Eased edges for safer handling and a smoother, cleaner appearance.
• Ideal for decking frames, structural supports, garden rooms, roofing, and general outdoor construction.

Please note: Timber is a natural product. Finish, colour and sizes may vary from illustration and description. While every care is taken to provide you the best material, with it being natural it can move, split, warp, twist, swell and shrink.