Non-metallic building materials, namely, boards of wood, gypsum board, non-metal door panels; wood boards, decking boards, door panels, wall panels, floor panels and joists for construction purposes of wood; boards, door panels, wall panels, floor panels and joists made of or from wood; boards and door panels, wall panels, and floor panels of wood; boards, door panels, wall panels, floor panels and joists of plywood; boards and door panels, wall panels, and floor panels of wood fibre; wood fi...