12 CONSTRUCTION MATERIALS, BUILDING COMPONENTS AND SUB-ASSEMBLIES-NAMELY , LUMBER, PLYWOOD, SIDING, ROOFING, FLOORING, WALLBOARD, KITCHEN CABINETS, BUILDING INSULATION, BUILDING PAPER, PRE-HUNG WINDOW AND DOOR UNITS, MOLDINGS, TRIM, LOUVERS, SHUTTERS, WEATHER STRIPPING, PREFABRICATED FIREPLACES AND MASONRY MATERIALS