What is the minimum permitted clear width for an exit door in a building?

The minimum permitted clear width for an exit door in a building is 32 inches. This requirement is established to ensure that occupants can safely and quickly exit the building in an emergency situation. The width must accommodate various factors, including the potential need for individuals with mobility devices, such as wheelchairs, to pass through without obstruction.

A door providing a clear width of 32 inches allows enough space for two people to move through side by side, which is vital during high-traffic evacuations. This measurement aligns with the safety standards set in building codes and fire safety regulations, which aim to facilitate an efficient egress route during emergencies.

A narrower opening would be insufficient for safe and quick evacuation, particularly in situations where panic may cause congestion. It is essential for construction and renovation projects to adhere to these standards to ensure the safety and accessibility of all building occupants.