Timber 10x2 | Timber Decking

Discover our range of high-quality 10x2 timber (47mm x 245mm) at Build4Less – the trusted choice for builders, roofers, landscapers, and DIYers across the UK. Whether you're working on structural framing, joists, or heavy-duty flooring, our timber delivers exceptional performance, strength, and reliability.

What is 10x2 Timber?

10x2 timber, also known as 47mm x 245mm timber, is a large structural timber section commonly used in load-bearing applications. It is typically kiln-dried, planed with eased edges, and available in C16 or C24 structural grading to meet building regulations. This size is ideal for heavy-duty projects where strength and durability are crucial, such as joisting, flooring, roofing, and large-scale framing.

C24 Carcassing Treated Timber

Typically measuring 47mm x 250mm x 4.8m, this timber is treated and graded as C24. The treatment process enhances its durability and resistance to rot, making it suitable for outdoor and indoor uses. The C24 grading indicates a higher strength level, ideal for load-bearing applications. It's commonly used in framing, roofing, floor joists, decking support, and other structural elements in construction projects. Its strength makes it suitable for areas where robust support is crucial.

Choosing the Right Treated Timber 10x2 

When selecting Timber 10x2 for your project, consider the following:

• Project Requirements: Assess the load-bearing requirements of your project. For heavy-duty structural uses, C24 graded timber is preferable.
• Environment: If the timber will be exposed to outdoor elements, ensure it is treated for weather resistance.
• Sustainability: Look for timber sourced from sustainable forests to ensure environmental responsibility.

Benefits of Treated Timber 10x2

• Exceptional Strength – C16 and C24 graded timber ensures reliable load-bearing performance.
• Treated for Longevity – Pressure-treated options resist moisture, rot, and fungal decay, perfect for internal or external use.
• Dimensional Stability – Kiln-dried to reduce warping and shrinkage over time.
• Smooth, Planed Finish – Eased edges provide safe handling and a clean look.
• Versatile Lengths – Available in a variety of lengths to minimise waste and maximise efficiency.

Applications of Treated Timber 10x2

10x2 timber is widely used across domestic, commercial, and industrial building projects. Common applications include:

• Floor Joists and Roof Rafters
• Structural Framing and Partition Walls
• Decking Substructures and Pergolas
• Garden Buildings, Garages, and Sheds
• Heavy-duty Carcassing and Support Beams

Installation Tips for Treated Timber 10x2

• Use Structural Screws or Joist Hangers – For secure, load-bearing connections.
• Pre-Drill When Needed – To prevent splitting, especially near the ends.
• Measure and Cut with Precision – Use a mitre saw or circular saw for clean edges.
• Seal Fresh Cuts – Apply end grain preservative to maintain rot resistance after trimming.
• Check for Level and Plumb – Ensure proper alignment during floor or roof installation.

Why Choose Treated Timber 10x2 from Build4Less?

• Trusted by Trade and DIY – Supplying high-quality timber nationwide at competitive prices.
• Fast, Reliable UK Delivery – Delivered direct to your site or home.
• Competitive Bulk Pricing – Save more when buying in quantity.
• Sustainably Sourced Timber – Responsibly harvested to meet UK standards.
• Expert Advice On-Hand – Our team is always ready to help with product selection and project guidance.