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Special OfferSpecial Offer
C16 Timber Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 100mm (4x2)
£2.36 - £13.59 per piece (Ex VAT)£2.83 - £16.31 per piece (Inc VAT)This C16 deck joists make the perfect companion for your decking area, as they support the decking planks in place. Featuring UC4 treatment, means that not only is it ideal for outdoor use, but it is also suitable for direct contact with the ground. C16... -
Special OfferSpecial Offer
C16 Timber Joists UC4 Treated Brown Incised Kiln Dried Regularised FSC 47 x 150mm (6x2)
£3.13 - £17.97 per piece (Ex VAT)£3.76 - £21.56 per piece (Inc VAT)C16 deck joists are perfect for supporting your decking area, as they sit under your decking planks. This brown timber carcassing is UC4 treated, meaning that not only is it ideal for outdoor use, but it is also suitable for direct contact with the...
Our range of C16 timber is a trusted choice for structural projects. This strength-graded timber is ideal for internal building work where durability matters. All our timber C16 is kiln-dried for stability and can be used for joists, rafters, and stud walls.
What is C16 timber?
C16 timber is structural timber graded for use in domestic and light commercial buildings. It offers strength and stability at an affordable price. If you’re building floors, roofs, or partitions, C16 treated timber is the ideal solution for lasting protection against moisture and decay.
C16 timber sizes
We stock a wide selection of C16 timber sizes to suit any project. Common dimensions include:
- 47mm x 100mm
- 47mm x 150mm
- 47mm x 200mm
Whether you need short lengths or full-sized beams, our range has you covered.
C16 vs C24 timber
Many customers ask about C16 vs C24 timber. The main difference is strength. C24 is stronger and often used for heavy loads or larger spans. However, C16 timber is more than enough for most internal structural work, offering great value without compromising safety.
Why choose C16 treated timber?
For outdoor or damp environments, choose C16 treated timber. It’s pressure-treated to resist rot, fungal decay, and insect attack. This makes it a smart choice for joists in ground-floor areas or outdoor frames where durability matters.
Explore our full range of C16 timber and find the perfect size for your project. Strong, reliable, and cost-effective – it’s the ideal choice for structural building work.