Typical handrails at ramps detail in DWG file, The maximum slope of a ramp that serves any exitway, provides access for persons with disabilities, or is in the path of travel shall be 1' rise in 12' of horizontal run. The width of ramps shall be as required for stairways and exits. (sec 1133b.5.2 fig 1 1b-38 & 39), edge protection provided by vertical guard rails.