Building timber; Door casings, not of metal; Door frames, not of metal; Door panels, not of metal; Non-metal doors; Non-metal jalousies; Non-metal lintels; Non-metal windows and doors; Parquet flooring; Porches, not of metal, for building; Stair treads not of metal; Staircases, not of metal; Window frames, not of metal; Windows, not of metal; Wooden flooring