When used for decking it is recommended that Cladco Heavy Duty Composite Structural Joists are used in conjunction with a hard concrete base to ensure the joist support substructure is sturdy and reliable for your project. Used for elevated decked areas, you can also place structural composite joists directly onto grass if a solid concrete base isn’t an option. It is recommended that, as a rule of thumb, 1 joist is purchased per square meter of decking and they should be spaced no more than 400mm apart.Why use Composite Decking and Cladding?Composite decking and cladding products are made from a mixture of plastic and wood to create a decking or cladding material that is hard wearing, low maintenance and a resistance to natural mould, insects and moisture. Growing increasingly popular, composite decking and cladding is available in a range of styles and is easy to install.Features & BenefitsCharcoal colourHeavy dutyCan place directly onto grassIdeal for wall claddingReliable and sturdyProduct SpecificationsLength: 4000mmWidth: 100mmThickness: 50mmMaterial: CompositeTo our customers based in Scotland, please be advised that all Scottish deliveries for Cladco products will incur an additional delivery charge. For more information on delivery costs, please contact our sales team.