This Article indicates that handrails need to terminate in a manner that will not obstruct pedestrian travel or create a hazard. This requirement is intended to reduce the risk of injury to users, particularly those with sight impairment.
Handrails for stairs and ramps serving a single dwelling unit or a house with a secondary suite (including their common spaces) are not required to extend beyond the top and bottom of the stair or ramp. For all other stairs and ramps, at least one handrail is required to extend horizontally not less than 300 mm (12 in.) beyond the top and bottom of each flight or ramp (Figure 9.8.-14). This horizontal extension, which allows the handrail to be grasped while the user is on the landing where there is less risk of falling, is for the benefit of persons with a physical disability or who rely on a cane or crutches for mobility
Quoted from Illustrated User's Guide - NBC2015
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