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1104.16.1 Existing means of egress. Code of Massachusetts Regulations (CMR) . Ladders or rungs shall have an inside width of at least 12 inches, shall project at least 3 inches from the wall and shall be spaced not more than 18 inches on center vertically for the full height of the window well. List, Committee Day, Combined IBC 2003 Clear space between a handrail and a wall or other surface shall be a minimum of 1.50 inches (38mm). Building Codes - ICC Codes | ConstructConnect Legislative Auditor, Legislative Coordinating on MN Resources (LCCMR), Legislative 1104.22 Exterior stairway protection. IBC Residential stair code requirements (hotels, apartments, dorms, and any congregate living facilities) IBC defines the requirements and standards for all stairways used as a means of egress in any of these types of buildings. Search & Status (House), Bill In occupancies in Group I-3, F, H, or S, the clear distance between intermediate rails measured at right angles to the rails shall not exceed 21 inches (533 mm). In order to determine this the code refers us to Section 1005.1, but before we look at this section the code does say that the minimum width shall not be less than 44 inches. These shall be no higher than the floor or windowsill level and no lower than 8 inches (203 mm) below the floor level or 18 inches (457 mm) below the windowsill. Internally illuminated signs shall provide equivalent luminance and be listed for the purpose. Illumination is not required for aisle accessways. 2020 Minnesota State Building Codes 2020 Minnesota State Building Codes The 2020 Minnesota State Building Code is effective March 31, 2020, except for the Minnesota Mechanical Fuel Gas Code, which is effective April 6, 2020. The minimum corridor width shall be as determined by the occupant load calculations in Section 1005.3 but not less than 36 inches. Handrails are required on both sides of a stairway. 1104.1.2 Egress width. For example if the width of a stairway is 44 inches, the landing shall be a minimum 44 inches in depth but if a stairway is 60 inches in width, the landing shall only need to be a minimum 48 inches in depth. IFC section 1104.5 is amended and sections added to read: 1104.5 Illumination - general. The minimum headroom for existing buildings shall be in accordance with Section R305.2.2. Rooms in Group E occupancies used by preschool, kindergarten, first- or second-grade pupils, latchkey, child care, early childhood family education, teen parent, or similar programs shall be located as required by the Building Code. | Karen/ 1104.5.2 Illumination level. Community Planning & Economic Development.