19 Building materials, namely, millwork, exclusive of cabinets; fiberglass doors; wood doors; medium density fiber doors; non-metal doors with mirrors, glass, and veneers; non-metal entry doors; fiberglass, wood, and vinyl patio doors; non-metal hinged and sliding patio doors; nonmetal hollow and solid particleboard core doors; non-metal interior doors; nonmetal door frames; nonmetal doors with screens; non-metal decorative french doors; wood and fiberglass columns; non-metal porch posts; non-metal deck and porch railings; non-metal porch ceilings; wood columns and porch posts; non-metal balustrade parts, namely, balusters, newels, handrails, top and bottom rails, fittings made of various hardwood, hemlock, or urethane, goose necks, treads and rossets; non-metal stairs; non-metal stair rails; non-metal stair parts, namely, balusters, rails, newels, box newels; non-metal windows; vinyl windows; non-metal window frames; non-metal balustrade parts; polyurethane millwork, exclusive of cabinets; interior and exterior non-metal window and door trim, mouldings, louvers, gable vents; cellular PVC trim; non-metal locks; non-metal handles and knobs for doors and windows; non-metal keys for locks; fireplace mantles; wood shutters; non-wood shutters, namely, vinyl