Golden House Wooden Fire Wood Door are made according to UL & WHI testing methord and can be used in a 20 minute hotel, a 60 minute commercial business center, or in a 90 minute stairwells. We can effectively create diversified design across your project whether it is traditional, contemporary, or historic. The basic thickness is at standard 1-3/4". All the cutouts on lock(Card reader, Rim exit devices, cylindrical lock and mortise lock), hinge, closer,etc, all conforms to North American standard. It can be Flush type, Narrowed glass/ Vision glass, Louver, Raised Panel or flat panels type. Paint grade Stained painting, clear lacquer finish or white primer paint.