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4x2 Timber

Our selection of 4x2 timber is perfect for structural projects such as framing, stud walls and joists. Strong, versatile, and easy to handle, this size remains a top choice for both professional builders and DIY enthusiasts.

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  • Special Offer
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    Special Offer

    C24 Timber Joists UC4 Treated Green PEFC 45 x 95mm (4x2)

    £3.00 - £17.25 per piece (Ex VAT)
    £3.60 - £20.70 per piece (Inc VAT)
    Our C24 timber joists are a 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 produced from slower...

Our range of 4x2 timber (approx. 47mm x 100mm) is one of the most popular choices for construction and DIY. Perfect for stud walls, joists, and structural frameworks, it provides the strength and stability you need for professional results.

Need extra durability? 4x2 tanalised timber is ideal for outdoor or damp environments. Every piece of this timber is pressure-treated to protect against rot, decay and insect damage - ensuring strength that lasts.

What is 4x2 timber in mm?

Many customers ask this question. The answer is approximately 47mm x 100mm, which is the standard finished size after planing. This makes it ideal for structural work while being easy to handle and cut.

Why choose 4x2 timber?

4x2 timber is widely used in both domestic and commercial builds. Its strength makes it suitable for:

  • Stud wall framing
  • Roof joists and rafters
  • Decking frames
  • General construction work

Treated timber for outdoor use

If your project is exposed to moisture or outdoor conditions, treated timber is a good choice. Pressure-treated for added protection, this option helps prevent rot, fungal decay, and insect damage. It's ideal for decking, fencing and garden structures.

We stock a variety of lengths to suit any project. Browse our selection of 4x2 timber for strong, durable and cost-effective solutions for your building needs.