North Carolina Building Contractor License Practice Exam

What is the minimum width for an egress door opening?

1. 28 inches

2. 30 inches

3. 32 inches

4. 36 inches

The correct answer is: 32 inches

The minimum width for an egress door opening is established to ensure safe and efficient passage during emergencies, such as fire evacuations. A 32-inch width is specifically specified in many building codes, including the International Building Code and various state adaptations, because this dimension allows for easier movement of occupants, especially those who may require assistance or are wheelchair users. Wider door openings contribute to a safer environment by minimizing the risk of bottlenecks and ensuring that individuals can exit quickly and efficiently. In contrast, options that specify narrower openings, such as 28 or 30 inches, do not meet the recommended safety standards for egress pathways. These smaller widths could lead to potential hazards during emergencies, creating challenges for evacuation. A door width of 36 inches, while meeting the requirement and being favorable for accessibility, exceeds the minimum requirement and is not necessary according to the basic statutory standards. Thus, a 32-inch width strikes the right balance, ensuring compliance with safety regulations while still accommodating a wide range of individuals during emergencies.