Hazardous Areas and Combustible Storage

Section 350 Section 350.3930  Hazardous Areas and Combustible Storage Walls at enclosure of hazardous areas shall have a one-hour fire resistive rating. Doors at enclosure of hazardous areas shall be a minimum of one and three-eighths inches thick solid core wood, with automatic closer.  Hazardous areas include the following:  kitchens, furnace and heater rooms, laundries, rooms or spaces, including repair shops, used for the storage of combustible supplies and equipment in quantities deemed hazardous by the authority having jurisdiction.  (B)