100% Recycled Plastic Decking Joist 50mm x 100mm x 3600mm

Create a robust, rot-proof decking subframe with our 100% Recycled Plastic Decking Joist. Measuring 50mm x 100mm x 3600mm, this heavy-duty joist is engineered to provide a solid, long-lasting foundation for composite decking boards — without any of the maintenance demands of traditional timber.

Manufactured entirely from recycled plastic, this joist is completely impervious to rot, moisture, and insect damage. Unlike pressure-treated timber, it will never warp, split, or require retreatment — making it the ideal low-maintenance subframe solution for composite decking installations that are built to last. The 50mm x 100mm profile provides excellent load-bearing capacity, suitable for both ground-level and raised decking structures.

Choosing recycled plastic joists over timber is also an environmentally responsible decision, diverting plastic waste from landfill and reducing the demand for virgin timber. Compatible with all major composite decking board ranges including the Elegance series.

• Dimensions: 50mm x 100mm x 3600mm
• Material: 100% recycled plastic
• Rot-proof, warp-proof, and splinter-free
• No treatment, painting, or sealing required
• Moisture and frost resistant
• Environmentally responsible — made from recycled materials
• Suitable for ground-level and raised decking structures
• Compatible with composite decking boards

The sustainable, maintenance-free joist solution for premium composite decking projects.