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Building the base you need under your timber decking boards wouldn’t be possible without using our timber joists. Used in conjunction with our timber posts, you will be able to create a structurally stable base that lasts. Graded C24 in strength class, our timber decking joists are sawn and green treated with Tanalith ‘E’ preservative to ensure long-lasting protection from the elements.
Joist Length: 4.2m & 4.8m
Joist Width: 100mm
Joist Depth: 47mm
Each joist weighs approximately 18.6 kgs (4.2m) and 20.5 kgs (4.8m)
Our timber joists are responsibly sourced and are great for creating a supporting frame on top of a concrete base. Our 47mm x 100mm timber joists are available in both 4.2m and 4.8m in length and can be sawn, planed or drilled however you want to fit your decking project, weighing 18.6 kgs and 20.5 kgs respectively.
When used efficiently, timber decking joists completely support the base of your decking boards. We highly recommend using on top of a concrete base as this will ensure the flattest possible surface to work with. Used alongside our timber posts will ensure as solid a structure to start from, meaning many years of usage without issue.