Ontario Building Code Practice Exam

What is the minimum clearance required for a door in a commercial building?

1. 700 mm

2. 750 mm

3. 800 mm

4. 850 mm

The correct answer is: 800 mm

The minimum clearance required for a door in a commercial building is 800 mm. This is because the standard accessibility requirement for doorways in public buildings is a minimum of 32 inches or 812.8 mm. Option A (700 mm), B (750 mm), and D (850 mm) are all less than the required minimum clearance, making them incorrect options. It is important to have a minimum clearance of 800 mm to ensure that people with physical disabilities, wheelchair users, and people with mobility aids can easily access the door and enter the building.