Municipal Code of Chicago § 18-28-917.4.3.2
Municipal Code of Chicago § 18-28-917.4.3.2
in effect18-28-917.4.3.2
Floor-mounted food service equipment that is not listed for mounting on a combustible floor shall be mounted in accordance with 18-28-917.4.4 or be mounted in accordance with one of the following:
1. Where the equipment is set on legs that provide not less than 18 inches (460 mm) open space under the base of the equipment or where it has no burners and no portion of any oven or broiler within 18 inches (460 mm) of the floor, it shall be permitted to be mounted on a combustible floor without special floor protection, provided there is at least one sheet metal baffle between the burner and the floor.
2. Where the equipment is set on legs that provide not less than 8 inches (200 mm) open space under the base of the equipment, it shall be permitted to be mounted on combustible floors, provided the floor under the equipment is protected with not less than 3/8 inch (9.5 mm) insulating millboard covered with sheet metal not less than 0.0195 inches (0.5 mm) thick. The preceding specified floor protection shall extend not less than 6 inches (150 mm) beyond the equipment on all sides.
3. Where the equipment is set on legs that provide not less than 4 inches (100 mm) under the base of the equipment, it shall be permitted to be mounted on combustible floors provided the floor under the equipment is protected with hollow masonry not less than 4 inches (100 mm) in thickness covered with sheet metal not less than 0.0195 inches (0.5 mm) thick. Such masonry courses shall be laid with ends unsealed and joints matched in such a way as to provide for free circulation of air through the masonry.
4. Where the equipment does not have legs at least 4 inches (100 mm) high, it shall be permitted to be mounted on combustible floors, provided the floor under the equipment is protected by two courses of 4 inches (100 mm) hollow clay tile, or equivalent, with courses laid at right angles and with ends unsealed and joints matched in such a way as to provide for free circulation of air through such masonry courses, and covered with steel plate not less than 3/16 inch (4.8 mm) in thickness.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2688259Fetched: 10/24/2026