19 Non-metallic building materials, namely, wood boards, wood and concrete beams, bricks, cement mixes, felt roof coverings, gravel, hardboard, joints for floors and walls, joists, laminated beams, lumber, mortars, particle board, plaster, plywood, roofing cement, tarred and asphalted roofing paper, shingles, shutters, siding, skylights, stucco, studs, trusses; non-metallic articles for use in building, namely, bifolds, wooden window casements, ceramic tiles, door frames, doors, fencing gates and panels; fireplace mantels, non-metal garage doors, non-metal gutter pipes, non-metal patio doors, pavers, non-metal sliding doors, stained glass windows, non-metal screen doors, non-metal tiles, and non-metal window screens, millwork, exclusive of cabinets, millwork, namely, moldings for doors and windows, window casings, window sashes, baseboards, crown moldings, and floor moldings; non-metal window casements, non-metal window frames, non-metal window sills, non-metal windows, stained glass windows, staircases, window panes, doors made of wood and fiberglass, windows made of wood and vinyl, dimension lumber, treated lumber, laminated beams and boards, plywood, drywall, gypsum, sheathing, wood and vinyl siding; non-metallic rigid pipes for building; asphalt, pitch and bitumen asphalt; non-metallic transportable buildings; monuments made of stone, concrete or marble