Construction Supervisor License Practice Exam 2026 – All-in-One Study Guide for Exam Success!

The correct answer reflects the minimum clear height requirement for exits in a commercial building, which is defined to ensure safe and unobstructed passage for occupants during an emergency. Building codes, such as the International Building Code (IBC), specify that exit routes, including doors, hallways, and stairways, must have a minimum headroom to prevent injuries and allow for the swift movement of people.

The minimum clear height of 6 feet 8 inches is established as a standard measurement that accommodates most individuals, including those carrying items or wearing headgear, while maintaining compliance with safety standards. This specific height ensures that exits are accessible and usable by everyone, thus playing a critical role in the overall safety strategy of a commercial space.