This plan detail shows a steel through-step ladder mounted to an interior support wall or frame, detailing the required clearances and unobstructed travel zones. The steel ladder features rungs with a slip-resistant finish spanning between side rails fastened to the supporting structure with added bracing as required. Dimensioned clearance zones maintain a minimum distance from the face of the interior support wall, with clear space maintained for the full height of travel. Distances are subject to variation as sized per plan and sections.
2'-6" CLR. 1'-3" MIN. CLR. 1'-3" MIN. CLR. 2'-6" MIN. CLR. 7" MIN. 7" MIN. 1'-0" 8" MIN. 1'-0" 8" MIN. LADDER RUNG WITH SLIP RESISTANT FINISH STEEL LADDER SIDE RAIL FASTEN LADDER TO SUPPORTING STRUCTURE. BRACE AS REQUIRED FACE OF INTERIOR SUPPORT WALL OR FRAME CL CL NO OBSTRUCTIONS IN THIS ZONE FOR FULL HEIGHT OF TRAVEL DISTANCE MAY VARY SEE PLAN AND SECTIONS 20 A820
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