Non-metallic building products, building products, structures and reinforced structures made from polymers and polymer composites including angles, channels, beams and i-beams, tubes and tubing, flat sheets, grates and grating products, epoxy kits and resin sealants, rods and bars, fastening materials including studs and nuts, toe plates, angels, gates and gate guides, flights, decks and decking materials, tanks, custom structures, shapes and plates, roofing and flooring, customised shapes, rails and hand rails, balustrades, structural building panels, baffles, fences and fencing, ducts and ducting, visual screens, ladders and cages