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Use our decking calculator to work out the size and quantity you'll need
So, you’ve got your project planned using our range of composite decking options, now you need composite decking joists to help this vision come to life. As the first section to be considered before putting together your decking or cladding support, composite joists are a vital component. Each of our composite joists come in one colour option of charcoal.
Each joist measures: 4000mm x 50mm x 30mm.
Each joist weighs approximately 4.7kg.
Each joist should be spaced no more than a maximum of 400mm apart.
We recommend as a rule of thumb purchasing 1x joist per square metre of decking.
Composite joists from WPC Decking can be utilised for most domestic decking and wall cladding projects and we highly recommend they are used in conjunction with a hard concrete base. This is to ensure that the joist support substructure is sturdy and, above all, reliable to use for the rest of your project. Purchasing 1x joist per square metre of decking and spacing them no more than 400mm apart is highly recommended.