Stair handrail extensions comply with accessibility standards for bottom and top terminations. The bottom handrail extension includes one tread depth extension referenced to architectural drawings and maintains a gripping height between 34 inches and 38 inches above the stair nosing. The top handrail extension features a 12-inch horizontal extension past the edge of the stair tread with a maximum height of 27 inches for intermediate gripping components. Railing design coordinates with architectural requirements and specific code sections A117.1 505.10.2 and 505.10.3.
DEPTH (1) TREAD DEPTH (1) TREAD 34" - 38" FOR RAILING DESIGN, REF TO ARCH DWGS BOTTOM HANDRAIL EXTENSIONS AT STAIRS A117.1 505.10.3 12" 27" MAX TOP HANDRAIL EXTENSION AT STAIRS A117.1 505.10.2 EDGE OF STAIR TREAD
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