Building materials not of metal, namely, wood and wood derivatives and modified wood, namely, thermally treated lumber and semi-worked woods, chemically treated lumber and semi-worked woods, and semi-worked woods; balustrades; beams not of metal; non-metallic transportable buildings; floor boards not of metal; frameworks for buildings not of metal, namely, building, wall, door and window framing; building panels not of metal; building timber; caissons for construction work under water; cask wood, namely, semi-worked cask wood, cask wood ceiling boards, cask wood boards, cask wood floor tiles, cask wood floorboards and cask wood planks; suspended non-metal ceiling panels; cladding not of metal for buildings; construction materials not of metal, namely, exterior panels, wall panels not of metal; cornices not of metal; diving boards not of metal; docks not of metal for mooring boats; doors, door casings, frames and panels not of metal; duckboards not of metal; ducts not of metal for ventilating and air conditioning installations; fair huts, namely, nonmetallic transportable buildings; fences not of metal; flashing not of metal for buildings; floor tiles not of metal; floors not of metal; furrings, gates and girders not of metal; door, window and greenhouse frames not of metal; wooden edging and skirting, namely, architectural molding and finish trim; gutter pipes and gutters not of metal; non-metal hips for roofing; horticultural building-wall- and fence-framing not of metal; huts, namely, nonmetallic transportable buildings; jalousies not of metal; joists not of metal; latticework not of metal. lengthening pieces not of metal for chimneys, namely, chimney pieces, mantel pieces, and tubing and piping for chimneys; lintels not of metal; lumber; mantelpieces; masts not of metal, namely, posts and poles of wood; memorial engraved and cut stone plaques; moldable preserved wood, moldable veneer wood; moldings not of metal for buildings and cornices; palings not of metal; palisading not of metal; nonmetal partitions for toilets and for dividing office and other spaces; penstock pipes not of metal; perches, namely, non-metal window sills and interior sills; modular and prefabricated pigsties; wood concrete and stone pilings; water pipes not of metal; planks of wood for building; prefabricated platforms not of metal, namely, wooden and synthetic flooring, staging, and daises; plywood; poles not of metal for electric power lines; swimming pool structures not of metal, namely, nonmetallic buildings and enclosures, and aggregate material composed of marble and cement for swimming pool finishes; prefabricated non-metal decking for use as porches; posts not of metal; construction elements not of metal, namely, supports; railroad ties not of metal; railway sleepers not of metal, namely, foundations for railway tracks; reinforcing materials not of metal for buildings; roofing, namely, roof coverings and flashings not of metal; scaffolding not of metal; carpentry scantlings in the nature of small timber; insect screens not of metal; sheet piles not of metal; non-metal window and door shutters; non luminous, non mechanical, non metal signal panels; signs and signs for roads, non luminous and non mechanical, not of metal. window and door sills not of metal; silos not of metal; slabs not of metal, namely, slabs of cement, stone, and wood; prefabricated non-metal stables; staircases, stringers and stair treads not of metal; stave wood in the nature of timber, namely, semi-worked stave wood, stave wood ceiling boards, stave wood boards, stave wood floor tiles, stave wood floorboards and stave wood planks; plaster and plaster-like synthetic non-metallic surfacing compounds for building purposes; telegraph posts not of metal; ceramic, wood, and stone tiles and ceramic, wood, and stone tile floorings; building, manufactured, sawn and worked timber; tombs, tombstone plaques, tomb and grave enclosures and tombstone stelae of stone, concrete or marble and tomb and grave enclosures in the nature of railings not of metal; trellises not of metal; burial vaults not of metal; veneer wood and wooden veneers; wainscoting not of metal; building materials, namely, manufactured brick and decorative stone veneer for use on exterior walls, non-metal sidings and non-metal cladding for exterior walls; windows and window frames not of metal; semi-worked wood for carpentry use, namely, for use in making household utensils; wood paneling and wood paving for floors and walls; wood pulp board for building; semi worked wood; non-metallic rigid pipes for building; asphalt, pitch and bitumen; nonmetallic transportable buildings, namely, sheds, conservatories, greenhouse and wooden garden buildings; monuments of wood; all of the above being non-metal building materials