My own design & homemade wooden box trailer has parts of the floor reinforced and water proofed with glass fibre woven roving and pigmented black polyester resin which made a hard wearing surface. I made the home built chassis out of mild steel & stainless steel which I Tig welded to my own design. I designed the white PVC cover and Elliott sail makers at Chatham dockyard in Kent cut, stitched and supplied the cover. The wheels & tyres were off a Mini car. I Tig welded the stub axles onto the suspension arms.