Handrail Clearance and Cross Section [§505.5, §505.7]
Surface requirements and clearances facilitate a power grip along the length of handrails. Handrails can have circular or non-circular cross-sections, but must have rounded edges. The gripping surface and adjacent surfaces must be free of abrasive or sharp elements. Wall-mounted handrails with leading edges higher than 27” cannot protrude more than 4½” into circulation paths (§307.2).
Circular Cross Section and Clearance
Non-Circular Cross Section and Clearance
Recommendation: Projecting objects above handrails can impact their usability. Keep wall surfaces above handrails free of any protrusions.
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