The minimum dimensions of means of egress ramps shall comply with Sections 1012.5.1 through 1012.5.3.
The minimum width and required capacity of a means of egress ramp shall be not less than that required for corridors by Section 1020.2. The clear width of a ramp between handrails, if provided, or other permissible projections shall be 36 inches (914 mm) minimum.
The minimum headroom in all parts of the means of egress ramp shall be not less than 80 inches (2032 mm).
Means of egress ramps shall not reduce in width in the direction of egress travel. Projections into the required ramp and landing width are prohibited. Doors opening onto a landing shall not reduce the clear width to less than 42 inches (1067 mm).