Classification Information
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 above containing a fire retardant chemical; Limestone; Stones; Tiles of clay, glass, gypsum, ceramic or earthenware; Paver tiles; Paving stones
Nonmetallic Building Materials