Building panels, not of metal, for floors, walls, ceiling, roofs, decks, beams and stairs; composite panels of non-metallic materials for use in building; decorative ceiling panels made of synthetic resins; door panels, not of metal; floor panels not of metal; construction elements not of metal, namely, shores, braces, beams and trusses; bearers, in the nature of construction supports, beams and elongate building members not of metal; fence panels of non-metallic materials; modular wall panelling of non-metallic materials; multilayer panels of plastic for use in building; non-metallic building materials in the form of panels for use in roofing, walls, floors and decks; non-metallic shaped panels for use in the construction of doors; planar panels made of fibre-reinforced plastic for building and civil engineering applications, namely, bridge decks; polymeric building panels; solid polymer and mineral combination building panels