Composite Joist/Battens Features and Benefits Create a durable, weatherproof, and low-maintenance foundation for your composite decking by using our low-profile composite joist for your decking frame. Our composite battens are everything you need to make your project a success. Our composite joist is engineered to resist rotting, warping, splintering, and splitting, ensuring long-lasting support without the need for treatment or frequent replacement like traditional timber joists. Designed for versatility, it can be installed either side up and is ideal for solid, weight-bearing bases such as concrete. To attach your decking boards securely to our composite battens, use our range of decking clips, which perfectly complement the composite joist system. Additionally, the composite joist serves as an excellent frame for composite cladding. Simply attach it to the wall or structure, and install the cladding directly over it for a sleek, secure finish. Our Low Profile Composite Battens are not suitable for raised decking projects – we recommend using adjustable pedestals and aluminium joists instead. Composite Joist FAQs What joists do you use for composite decking? Composite decking requires durable, moisture-resistant joists, such as aluminium or composite options, to ensure long-lasting support. The joist choice impacts stability, especially with low-profile designs, making high-strength materials essential. How do you fix composite decking joists? Begin with a secure, level base. Use fixings like stainless steel screws or clips designed for composite decking. A fixing should be at every point a board crosses a composite joist. How do I install composite decking? Install composite decking by aligning boards perpendicularly to the joists. Maintain consistent spacing between boards to allow for expansion, and use clips or screws to fix boards securely, starting from the centre outward. Read our full composite decking installation guide for more support. What is the difference between composite joists and battens? Joists are primary support beams used beneath the decking, designed for durability and load-bearing, while battens are typically lighter, offering spacing and ventilation. Composite joists provide a robust, rot-resistant alternative to wood.Our Dino Decking composite joists/battens offer exceptional decking support, suitable for all types of builds with the exception of a raised deck. The composite material is both breathable and durable which stands the test of time. Can composite decking be laid on wooden joists? Yes, provided the wooden joists are in good condition, level, and properly spaced. However, we generally recommend composite joists as wood can rot over time, reducing the deck’s lifespan. How far apart joists should you place joists/battens? Standard spacing between composite decking joists is usually 300mm, depending on board width and expected load. Proper spacing ensures stability and prevents board sagging. When used as composite battens for wall cladding the recommended spacing is typically at 300mm centres, depending on the cladding manufacturer’s guidelines and the batten’s strength. This spacing supports the cladding boards adequately, ensuring even load distribution and long-term stability. It’s also essential to consider factors like climate and exposure to wind or heavy loads, as these can impact spacing needs. Composite decking requires durable, moisture-resistant joists, such as aluminium or composite options, to ensure long-lasting support. The joist choice impacts stability, especially with low-profile designs, making high-strength materials essential.Begin with a secure, level base. Use fixings like stainless steel screws or clips designed for composite decking. A fixing should be at every point a board crosses a composite joist.Install composite decking by aligning boards perpendicularly to the joists. Maintain consistent spacing between boards to allow for expansion, and use clips or screws to fix boards securely, starting from the centre outward. Read our full composite decking installation guide for more support. Joists are primary support beams used beneath the decking, designed for durability and load-bearing, while battens are typically lighter, offering spacing and ventilation. Composite joists provide a robust, rot-resistant alternative to wood.Our Dino Decking composite joists/battens offer exceptional decking support, suitable for all types of builds with the exception of a raised deck. The composite material is both breathable and durable which stands the test of time.Yes, provided the wooden joists are in good condition, level, and properly spaced. However, we generally recommend composite joists as wood can rot over time, reducing the deck’s lifespan. Standard spacing between composite decking joists is usually 300mm, depending on board width and expected load. Proper spacing ensures stability and prevents board sagging. When used as composite battens for wall cladding the recommended spacing is typically at 300mm centres, depending on the cladding manufacturer's guidelines and the batten's strength. This spacing supports the cladding boards adequately, ensuring even load distribution and long-term stability. It’s also essential to consider factors like climate and exposure to wind or heavy loads, as these can impact spacing needs.