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4x1 Timber

Explore our range of 4x1 timber, perfect for joinery, cladding, and general construction. Whether you’re tackling interior finishes or outdoor projects, timber 4x1 provides strength, stability, and a smooth finish for easy workability.

For projects exposed to moisture or outdoor conditions, choose 4x1 treated timber. This pressure-treated option is designed to resist rot, decay, and insect damage - making it ideal for long-lasting performance.

Select high-quality 4x1 timber you can trust for both professional builds and DIY projects.

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    C24 Timber Joists UC2 Treated Kiln Dried Regularised PEFC 44 x 95 x 4800mm (4x1)

    £4.69 - £26.95 per piece (Ex VAT)
    £5.63 - £32.34 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...
    £4.69 - £26.95 per piece (Ex VAT)
    £5.63 - £32.34 per piece (Inc VAT)
  • C24%2044x70%20Top1.jpg.jpeg C24%2044x70%20Top%20Angle.jpg.jpeg

    C24 Timber Joists Kiln Dried Regularised PEFC 44 x 95mm (4x1)

    £4.38 - £25.17 per piece (Ex VAT)
    £5.26 - £30.20 per piece (Inc VAT)
    C24 is a structural timber typically used to support structures and frameworks for buildings such as walls, ceilings and decking joists. It has many other uses for structural joinery. The use of C24 grade timber, which has a smaller cross-section,...
    £4.38 - £25.17 per piece (Ex VAT)
    £5.26 - £30.20 per piece (Inc VAT)
  • Special Offer
    C24%2044x95%20Treated%20Main.jpg.jpeg C24%2044x95%20Treated%20TopAngle.jpg.jpeg
    Special Offer

    C24 Timber Joists UC4 Treated Redwood 47 x 100 x 4800mm (4x1)

    C24 deck joists are perfect for supporting your decked area. This timber is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C24 graded timber is a premium loadbearing grade...
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    C24 Timber Joists UC2 Treated Kiln Dried Regularised FSC 44 x 95 x 3600mm (4x1)

    £4.69 - £26.95 per piece (Ex VAT)
    £5.63 - £32.34 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...
    £4.69 - £26.95 per piece (Ex VAT)
    £5.63 - £32.34 per piece (Inc VAT)

Our range of 4x1 timber (approx. 19mm x 100mm) is ideal for lightweight construction and finishing work. Commonly used for cladding, shelving, and decorative projects, this size offers flexibility for both DIY and trade professionals.

Why choose 4x1 timber?

4x1 timber is a great choice for projects where a thinner, lighter timber is needed, including:

  • Trim
  • Boxing
  • Fascia boards

    • Its smooth finish makes it easy to paint, stain, or varnish for a professional look.

    4x1 treated timber for extra protection

    For outdoor or damp environments, choose 4x1 treated timber. Pressure-treated to resist rot and decay, this option is ideal for cladding, fencing, and other exterior applications. It provides durability without compromising on appearance.

    Timber 4x1 sizes and options

    We stock timber 4x1 in a variety of lengths to suit different projects. Whether you’re creating shelving, boxing in pipework, or adding finishing details to a build, you’ll find the perfect size in our range.

    Shop our selection of 4x1 timber, including 4x1 treated timber and 4x1 tanalised timber, for reliable, high-quality materials at competitive prices.

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