Non-metallic building materials and apparatus; non-metallic support structures and load bearing structures including non-metallic temporary non-metallic support structures and load bearing structures; non-metallic support structures and fixings for buildings including temporary non-metallic support structures and fixings; non-metallic struts including plastic struts; non-metallic support blocks used in construction; plastic blocks and plastic articles including moulded plastic blocks and moulded plastic articles for civil engineering purposes; interlocking blocks of plastic designed to create temporary non-metallic support structures of variable size and configuration; mouldings made from polyurethane for use in building; movable partitions of plastic; plastic posts; parts and accessories for all of the foregoing

Polyurethane foam in blocks