Bamboo flooring; Construction timber; Dog doors not of metal; 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 railings, and wooden wainscoting, all of the above containing a fire retardant chemical; Building materials, namely, semi-worked woods; Wooden flooring; Parquet wood flooring; Planks of wood for building