Ontario Building Code Practice Exam 2026 - Free Building Code Practice Questions and Study Guide

The minimum distance required between two adjacent handrails on a stairway in a residential building is 800 mm. This distance ensures that there is enough space for people to grip both handrails comfortably while ascending or descending the stairs. Option A, 600 mm, may be too narrow and could potentially lead to accidents or discomfort. Option C, 1000 mm, although closer to the correct answer, may not leave enough room for people to pass by each other on the stairs. Option D, 1200 mm, may be too wide and could result in a waste of space.