19 Partially processed timber, construction timber, building timber, structural timber; and building materials, namely, lumber, processed timber products, namely, lumber, mantels for fireplaces of wood, noise barriers made of wood, pressure-treated wood columns, roofing boards, wood beams, wood blocks, wood boards, wood joints, wood joists, wood moldings, wood paneling, wood posts, wood rafters, wood siding, wood tile floors, wood trim, wood veneer, non-metal window sashes, non-metal window frames, non-metal window shutters, non-metal window sills, non-metal window casements, interior non-metal window shutters, non-metal door frames, non-metal door jambs, non-metal door panels, non-metal doors, wood trim, floor boards, non-metal floor tiles, non-metal floors, parquet floor boards, portable dance floors, wood tile floors, non-metal fence panels, non-metal fence posts, non-metal fence stays, non-metal gates and fences, non-metal railings for fences, balconies, bridges, and stairways, non-metal fencing panels, parquet wood flooring, wooden flooring, non-metal shingles, non-metal shakes, non-metal pontoons and structural supports therefor, used to support decking, non-metal floating docks, non-metal pilings and posts, pre-fabricated log homes, wood poles, wood posts, non-metal railroad ties, prefabricated wooden bridges, wooden walkways, retaining walls, gazebos not primarily of metal, trellises, dock posts, prefabricated decks, shaped timber, halved timber, and timber; materials of wood timber, namely, lumber, structural timber, partly processed timber, chemically treated lumber, chemically treated wood, namely, wood beams, wood boards, wood joists, wood rafters, wood siding, wood tile floors and flooring, wood trim, wooden beams, wooden flooring, wooden ailings, and wooden wainscoting, all of the foregoing containing a fire retardant chemical; and wood products and treated wood products, namely, floorboards, semi-worked wood; processed timber products; building materials; and materials of wood timber