An aluminum parapet access ladder model 503 features a platform and return with 1 inch by 3 inch by 1/8 inch channel frames constructed from alloy 6063-T5. The platform incorporates 1 1/4 inch by 4 1/8 inch serrated treads made from alloy 6061-T6 alongside aluminum serrated grab bars. Safety caps top the assembly, which includes detailed dimensions for riser spacings, platform width, and total height.
ALUMINUM SERRATED GRAB BARS 1" X 3" X 1/8" CHANNEL FRAME ALLOY 6063-T5 1 1/4" X 4 1/8" SERRATED TREAD ALLOY-6061-T6 PLATFORM PLAN SAFETY CAP 7" 7" 12" 12" 3' - 6" 3' - 8 1/2" 2' - 4" 3 1/8" * O'KEEFE'S INC. ALUMINUM PARAPET ACCESS LADDER MODEL 503 WITH PLATFORM AND RETURN
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