Accessibility requirements for ramps and handrails, including dimensional clearances and continuous edge protection. The handrail circular cross section is specified between 1 1/4 inch minimum and 2 inch maximum diameter with a 1 1/2 inch clear wall space. Handrails return smoothly to the wall or floor with a maximum 3 inch clearance where recesses exist. The ramp section establishes a 48 inch clear width alongside a 4 inch minimum continuous edge protection.
NOTE: 1. HANDRAIL CIRCULAR CROSS SECTION TO HAVE 1 1/4" DIA. MIN. AND 2" DIA. MAX. PER 2022 CBC 11B-505.7.1. 2. SURFACE OF HANDRAIL SHALL BE SMOOTH WITH NO SHARP EDGES PER 2022 CBC 11B-505.8. RAIL & BRACKET 1 1/2" MIN. B/N RETURN HANDRAIL SMOOTHLY TO WALL OR FLOOR 3" MAX.** 34"-38" ABOVE STAIR NOSING 1 1/2" CLEAR 4 1/2" MAX @ STAIRS 3 1/2" MAX. @ RAMP ** WHERE RECESS EXISTS. 18" MIN.** 1 1/4" MIN., 2" MAX. HANDRAILS PER 2022 CBC 11B-505. 1/4" MAX. 1 1/2" MIN. . 48" CLEAR * PER CBC 11B 405.5 CONTINUOUS EDGE PROTECTION 4" MIN. IF RAILING NOT REQUIRED OR DOES NOT HAVE BOTTOM RAIL < 4" ABOVE FINISHED SURFACE *PER 1012.5.1, THE MINIMUM WIDTH AND REQUIRED CAPACITY OF A MEANS OF EGRESS RAMP SHALL NOT BE LESS THAN THAT REQUIRED FOR CORRIDORS BY SECTION 1020.3 1 1/2" = 1'-0" 6 RAMP SECTION
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