Aquarium gravel; Aquarium sand; Athletic flooring; Aviaries not of metal; Boards of wood; Ceramic tiles; Chipboard; Fences, not of metal; Fireclay; Insect screens not of metal; Millwork, exclusive of cabinets; Non-metal building products, namely, shutters, shingles, siding, and trim; Non-metal castings; Non-metal folding doors; Non-metal tile trim; Non-metal water pipes