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7x3 Timber

Our heavy-duty 7x3 timber is designed for demanding structural applications, including load-bearing walls, roof joists and large-scale framing, for reliable performance in indoor and outdoor builds where strength is key.

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  • C24%2070x170%20Treated%20Main.jpg.jpeg C24%2070x170%20Treated%20Top.jpg.jpeg

    C16 Timber Joists UC3u Treated Kiln Dried Regularised FSC 72 x 170mm (7x3)

    £11.96 - £68.78 per piece (Ex VAT)
    £14.35 - £82.54 per piece (Inc VAT)
    Treated timber is suitable to be used externally and is suitable for wet areas or areas where the timber will be coming into contact with the ground. Examples of treated timber uses are outdoor decking, shed bases, posts, sleepers. Regularised timber has...
    £11.96 - £68.78 per piece (Ex VAT)
    £14.35 - £82.54 per piece (Inc VAT)

Our 7x3 timber is pressure treated and suitable for indoor and outdoor use for joists, rafters and load-bearing frames. With excellent strength and stability, this timber size is ideal for both professional construction and robust DIY projects.

Why choose 7x3 timber?

Heavy-duty 7x3 timber is designed for situations where extra width and strength are required. Common uses include:

  • Roof joists and rafters
  • Load-bearing walls
  • Large-scale frames
  • Structural applications

    • What is 7x3 timber in mm?

    7x3 timber is approximately 75mm x 175mm.

    Sizes and options

    We stock 7x3 timber in a variety of lengths to suit your project needs. It's also available in both C24 and C16 grades.

    Shop our full range for reliable, long-lasting construction materials. Strong, stable and versatile – perfect for any structural project.

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