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Timber Decking Joists | Treated Joists for Garden Decking Frames

Shop our range of pressure-treated timber decking joists, ideal for building strong and long-lasting decking subframes. Designed to support softwood and composite decking boards, these structural timbers are treated for outdoor durability and ground contact.

✅ UC3-treated for exterior use
✅ Available in popular sizes: 47x100mm, 47x150mm, 47x200mm
✅ Ideal for ground-level and raised decking projects
✅ Compatible with all major decking board types
✅ Strong, stable, and easy to install

Perfect for garden decking frames, outdoor platforms, and step construction. Trusted by landscapers, joiners, and home DIYers across the UK. Nationwide delivery available on all decking joists and framing

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4.8m x 50 x 47mm (2X2) Treated Timber Joist | C16 Grade Regularised

£5.40 - £5.40
£5.40
£5.40 - £5.40
£5.40
Out of stock

Our 4.8 metre x 50 x 47mm treated timber joist is a heavy-duty, regularised carcassing timber, ideal for structural and load-bearing applications. ...

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£5.40 - £5.40
£5.40
£5.40 - £5.40
£5.40
Sold out
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Dave Terrey
May, 2025
Great team, very helpful. Completed 16m of fencing in one day. Worked methodically to complete the fence which included three staggered sections with minimal disruption and cleared all debris. Great price too! Would highly recommend.
Marc Scott
April, 2025
Very handy having such a well stocked yard so close to my home, the staff are all very knowledgable and always keen to help and prices are good. ⭐️⭐️⭐️⭐️⭐️ operation 👌. - scotbeds
Ryan McGowan
March, 2025
sales girl Leighsa was really helpful with fast delivery
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