Ontario Building Code Practice Exam

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

1. 900 mm

2. 1000 mm

3. 1100 mm

4. 1200 mm

The correct answer is: 1100 mm

The minimum height required for a guardrail on a balcony in a commercial building is 1100 mm. This height is determined by building codes and safety regulations, which prioritize the safety of individuals using the balcony. Option A (900 mm) and B (1000 mm) are too low and do not provide adequate protection against falls. Option D (1200 mm) is higher than the minimum requirement and may not be necessary for all commercial buildings. Therefore, option C is the most appropriate and safest height for a guardrail on a balcony in a commercial building.