null

6x3 Timber

Our robust 6x3 timber is perfect for heavy-duty construction, offering excellent strength for structural frameworks, beams, and load-bearing applications. Whether you’re working on a large-scale build or a demanding DIY project, timber 6x3 provides the durability and reliability you need.

Ideal for both internal and external use, it's a trusted choice for professional tradespeople and home renovators alike.

Filters

Check local branch stock

  • C24%2070x145%20Main.jpg.jpeg C24%2070x145%20Top%20Angle.jpg.jpeg

    C24 Timber Joists Kiln Dried Regularised PEFC 70 x 145mm (6x3)

    £11.03 - £63.40 per piece (Ex VAT)
    £13.24 - £76.08 per piece (Inc VAT)
    Imported Treated C24 Graded KD Timber Regularised Carcassing is a high-quality imported whitewood that's commonly used for interior construction i.e., stud walls, roof, and floor joists. The use of C24 grade timber, which has a smaller cross section,...
    £11.03 - £63.40 per piece (Ex VAT)
    £13.24 - £76.08 per piece (Inc VAT)
  • C24%2070x145%20Main.jpg.jpeg C24%2070x145%20Top%20Angle.jpg.jpeg

    C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 70 x 145mm (6x3)

    £11.76 - £67.65 per piece (Ex VAT)
    £14.11 - £81.18 per piece (Inc VAT)
    Imported Treated C24 Graded KD Timber Regularised Carcassing is a high-quality imported whitewood that's commonly used for interior construction i.e., stud walls, roof, and floor joists. The use of C24 grade timber, which has a smaller cross section,...
    £11.76 - £67.65 per piece (Ex VAT)
    £14.11 - £81.18 per piece (Inc VAT)
  • C24%2070x145%20Main.jpg.jpeg C24%2070x145%20Top%20Angle.jpg.jpeg

    C24 Timber Joists UC2 Treated Kiln Dried Regularised FSC 70 x 145mm (6x3)

    £11.76 - £67.65 per piece (Ex VAT)
    £14.11 - £81.18 per piece (Inc VAT)
    Treated C24 is a structural timber that's commonly used for stud walls, roof and floor joists, and structural joinery. The use of C24 grade timber, which has a smaller cross section, allows for higher loads, and longer spans. C24 grade has fewer...
    £11.76 - £67.65 per piece (Ex VAT)
    £14.11 - £81.18 per piece (Inc VAT)

Why choose 6x3 timber?

6x3 timber is designed for situations where extra width and strength are required. Common uses include:

  • Roof joists and rafters
  • Flooring and decking supports
  • Large structural frames

    • 6x3 treated timber for outdoor use

    For projects exposed to moisture or outdoor conditions, choose from our range of 6x3 treated timber which is pressure-treated to resist rot, decay, and insect damage, ensuring long-lasting durability for garden structures, decking or outdoor frames.

    Newsletter Sign Up