RCNYS section R315 requires stairways having two or more risers to have at least one handrail, at a
height of between 34 and 38 inches above the nosing. There must be a clearance of at least 1 ½ inches
behind wall mounted handrails. Handrails must be continuous from a point above the top riser to a point
above the lowest riser of each flight of stairs. This would allow a newel post to be attached to the face of
the bottom riser, with half of its base resting on the bottom tread. Exceptions to R315.1 involving newel
posts are contained in the original ICC version of the code and have been issued as a clarification to the
RCNYS and are effective as follows:
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