What is the minimum clear width of new construction exit stairs serving an occupant load of less than 50?

In the context of building codes and safety regulations, the minimum clear width for exit stairs is designed to ensure the safe egress of occupants during an emergency. For new construction that serves an occupant load of less than 50, the minimum clear width is established based on factors such as the number of people likely to use the stairs and the need for efficient evacuation.

A clear width of 915 mm (or approximately 36 inches) is specified to accommodate the movement of individuals, including those who may be disabled or require assistance. This width allows for two people to comfortably pass each other, thereby reducing the risk of congestion and ensuring that all occupants can exit quickly and safely in the event of an evacuation.

While other widths may be appropriate for different scenarios or larger occupancies, the specified minimum of 915 mm for smaller occupant loads reflects a balance between safety, practicality, and code compliance, facilitating effective evacuation while meeting construction guidelines.