1029.9.1 Minimum aisle width.
BC § 1029.9.1
The minimum clear width for aisles shall comply with one of the following: 1. Forty-eight inches (1220 mm) for stepped aisles having seating on each side. Exception: Thirty-six inches (914.4 mm) where the stepped aisles serve less than 51 seats.
2.Thirty-six inches (914.4 mm) for stepped aisles having seating on only one side. Exception: Twenty-three inches (584 mm) between a stepped aisle handrail and seating where a stepped aisle does not serve more than five rows on one side.
3.Twenty-three inches (584 mm) between an aisle stair handrail or guard and seating where the stepped aisle is subdivided by a mid-aisle handrail.
4.Forty-two inches (1066.8 mm) for level or ramped aisles having seating on both sides. Exception: Thirty-six inches (914.4 mm) where the aisle serves less than 51 seats.
5.Thirty-six inches (914.4 mm) for level or ramped aisles having seating on only one side.
6.Thirty-six inches (914.4 mm) for aisles other than those listed above and cross-aisles serving less than 51 persons.
