Ontario Building Code Practice Exam

What is the minimum height required for a guardrail on a ramp in a commercial building?

1. 750 mm

2. 850 mm

3. 950 mm

4. 1050 mm

The correct answer is: 750 mm

The minimum height required for a guardrail on a ramp in a commercial building is 750 mm. This height is determined by safety regulations, as it is the minimum height needed to prevent fall hazards and maintain safety for pedestrians using the ramp. The other options, B, C, and D, are all taller than the required minimum height, making them incorrect options. A guardrail that is too high may also pose a safety hazard as it can potentially block the vision and movement of users on the ramp. Therefore, the minimum height of 750 mm is the most appropriate and safe height for guardrails on ramps in commercial buildings.