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MEANS OF EGRESS 1004.3.1.1 —1004.3.2.2 inches (178 mm). Doors in any position shall not 1004.3.1.3.3 Table and seating aisle accessway reduce the required width by more than one-half.Other length. The length of travel along the aisle access- nonstructural projections such as trim and similar dec- way shall not exceed 30 feet (9144 mm) from any orative features are permitted to project into the seat to the point where a person has a choice of two required width 1.5 inches (38 mm)from each side. or more paths of egress travel to separate exits. 1004.3.1.1 Public areas Group B and M. In public -// 1004.3.2 Corridors. Corridors shall comply with areas of Group B and M occupancies, the minimum b Sections 1004.3.2.1 through 1004.3.2.5. clear aisle width shall be 36 inches (914 mm) where seats, tables, furnishings, displays and similar fixtures 1004.3.2.1 Construction.Corridors shall be fire-resis- or equipment are placed on only one side of the aisle tance rated in accordance with Table 1004.3.2.1. The and 44 inches(1118 mm)where such fixtures or equip- corridor walls required to be fire-resistance-rated shall ment are placed on both sides of the aisle. comply with Section 708 for fire partitions. 1004.3.1.2 Nonpublic areas. In nonpublic areas, aisle Exceptions: widths shall be a minimum of 36 inches(914 mm). 1. A fire-resistance rating is not required for cor- Exception: Nonpublic aisles serving less than 50 ridors in an occupancy in Gaup where each people,and not required to be accessible by Chapter room that is used for instruction has at least 11 need not exceed 28 inches (711 mm)in width. one door directly to the exterior and rooms for assembly purposes have at least one-half of 1004.3.1.3 Seating at tables. Where seating is located the required means of egress doors opening at a table or counter and is adjacent to an aisle or aisle directly to the exterior. Exterior doors speci accessway,the measurement of required clear width of feed in this exception are required to be at the aisle or aisle accessway, shall be made to a line 19 ground level. inches(483 mm)away from and parallel to the edge of 2. A fire-resistance rating is not required for cor- the table or counter. The 19-inch (483 mm) distance ridors contained within a dwelling unit or a shall be measured perpendicular to the side of the table guestroom in an occupancy in Group R. or counter.In the case of other side boundaries for aisle 3. A fire-resistance rating is not required for cor- or aisle accessways, the clear width shall be measured ridors in open parking garages. to walls, edges of seating and tread edges, except that 1X-4. A fire-resistance rating is not required for cor- handrail projections are permitted. ridors in an occupancy in Group B which is a space requiring only a single mead of egrressr Exception: Where tables or counters are served by complying with Section 1004.2.1. fixed seats,the width of the aisle accessway shall be a ccort.di -Fo ton-eL�, measured from the back of the seat. 1004.3.2.2 Corridor width. The minimum corridor width shall be as determined in Section 1003.2.3, but 1004.3.1.3.1 Aisle accessway for tables and seat- not less than 44 inches (1118 mm). ing.Aisle accessways serving arrangements of seat- ing at tables or counters shall have sufficient clear Exceptions: width to conform to the capacity requirements of 1. Twenty-four inches (610 mm)—For access to 1003.2.3 but shall not have less than the appropriate and utilization of electrical, mechanical, or minimum clear width specified in Section plumbing systems or equipment. 1004.3.1.2. 2. Thirty-six inches (914 mm)—With a required occupant capacity of 50 or less. 1004.3.1.3.2 Table and seating accessway width. Aisle accessways shall provide a minimum of 12 3. Thirty-six inches (914 mm)—Within a inches (305 mm) of width plus 0.5 inch (12.7 mm) dwelling unit. of width for each additional 1 foot (305 mm), or 4. Seventy-two inches (1829 mm)—in Group E fraction thereof, beyond 12 feet(3658 mm) of aisle with a corridor having a required capacity of accessway length measured from the center of the 100 or more. seat farthest from an aisle. 5. Seventy-two inches (1829 mm)—In corridors serving surgical Group I, health-care centers Exception: Portions of an aisle accessway hay- for ambulatory patients receiving outpatient ing a length not exceeding 6 feet(1829 mm) and medical care, which causes the patient to be used by a total of not more than four persons. not capable of self-preservation. 2000 INTERNATIONAL BUILDING CODE® 233