Supersede Marine Board

Waterproof structural sheathing from recycled plastics. Works like wood, outperforms plywood & alternatives, cost-competitive, and enables zero-waste.

Supersede Marine Board is a structural sheathing panel made from recycled plastic waste, with superior strength, fastener retention, and durability over marine plywood, FRP, and foam composites. 100% waterproof, rot-proof, and non-toxic, it reduces deforestation and diverts waste from landfills. It works like wood—cut, drilled, laminated, and glued—while matching marine plywood pricing. Our off cut buy-back program recycles scrap and end-of-life panels for a closed-loop, zero-waste supply chain.