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STAIR RAIL CODE MASSACHUESETTS GOV FREE
Any wall or other surface adjacent to a handrail shall be free of any sharp or abrasive elements.
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STAIR RAIL CODE MASSACHUESETTS GOV FULL
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If the handrail is not circular, it shall have a perimeter dimension of at least 4 inches and not greater than 6 1/4 inches with a maximum cross section dimension of 2 1/4 inches. The handgrip portion of a handrail when circular in shape shall have an outside dimension not less than 1ΒΌ inches and not greater than 2 inches or the shape shall provide an equivalent gripping surface. The height of handrails is measured from the stair tread nosing, or the finished surface of a ramp slope and shall be uniform, not less than 34 inches and not more than 38 inches.