Decking Joist C24 - Treated to UC4 47x100 3.6m

All our timber decking joists are pressure treated to ensure the maximum lifespan possible. Timber that is in ground contact will rot in a few years if not pressure treated correctly.

C24 - highest strength and premium quality, ideal for strong load bearing such as balconies, or where sleek aesthetics are needed; usually the most expensive grade

We stock pressure treated, sturdy 47x100mm (2" x 4") joists. We carefully select our decking joists, rails and supports to ensure they offer the stability you need when enhancing an outdoor space.

Keep the spacings between your joists to no more than 450mm (18 inches) - or your decking boards may "bounce" when you walk on them.

Do not forget to include the "noggins" - the cross members designed to keep your deck stable and secure. If your joists are 450mm apart - try to put a noggin every 1500mm (5 feet)