For occupancy loads under 50 people, what is the required width of stairs?

When determining the required width of stairs for occupancy loads under 50 people, a width of 36 inches is specified. This width is considered minimum to ensure safe and efficient evacuation in the event of an emergency, allowing sufficient space for individuals to use the stairs comfortably.

The rationale behind this requirement is tied to safety codes and standards that are developed to protect occupants. For smaller occupancy loads, such as those under 50, the need for a wider stairway is balanced against the fact that fewer individuals would be using the stairs simultaneously. However, a 30-inch width, while it may seem adequate for a very small number of individuals, does not provide the necessary clearance for safety and accessibility standards, particularly for persons with disabilities or in emergency situations where movement may be hurried.

Wider options like 44 inches and 50 inches are typically reserved for higher occupancy loads or unique circumstances where larger crowds may need to evacuate, thus creating a higher potential for congestion on the stairs. Therefore, the 36-inch width is the appropriate standard for occupancy loads under 50 people, ensuring a balance between safety, accessibility, and code requirements.