Ontario Building Code Practice Exam

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Which of the following is not a requirement for an accessible washroom in a commercial building?

Grab bars
Barrier-free entrance
Sink with knee clearance
Bathtub with built-in seat

The correct answer is: Bathtub with built-in seat

A requirement for an accessible washroom in a commercial building is that it should have grab bars for support, a barrier-free entrance for wheelchair access, and a sink with knee clearance for those who use mobility aids. A bathtub with a built-in seat does not meet the requirement for knee clearance and may also be difficult for wheelchair users to access. Therefore, it is not a necessary requirement for an accessible washroom in a commercial building.