What is the minimum width of a stairway serving less than 50 people?

The minimum width of a stairway serving less than 50 people is established to ensure safe and efficient movement for occupants during both normal use and emergency situations. A width of 36 inches allows enough space for individuals to navigate the stairs comfortably, minimizing the risk of congestion which is particularly important during evacuation scenarios.

In building codes, this standard width is rooted in the need to provide adequate access for all users, including those who may require assistance. It strikes a balance between being wide enough to accommodate individuals moving side by side while still fitting within the design constraints of smaller structures. This makes it the appropriate choice for stairs serving a population under 50.

The other widths presented in the choices, while they may be necessary for larger capacities or specific situations, exceed the minimum requirement for a facility with fewer than 50 occupants, making 36 inches the correct requirement based on safety regulations.