Wis. Admin. Code Department of Safety and Professional Services SPS 375.09
Current through August 26, 2024
A fire-resistive door shall consist of a wooden core not less than 11/2 inches thick encased with metal using locked seam joints, or shall be entirely of metal and of a design approved by the department. The door frame shall be of metal or shall be metal covered. The door shall close automatically in case of fire.
Wis. Admin. Code Department of Safety and Professional Services SPS 375.09