For new construction, what is the minimum clear width for exit stairs serving an occupant load of 2000 or more?

The minimum clear width for exit stairs serving an occupant load of 2000 or more is crucial for ensuring safe and efficient evacuation in emergencies. According to building codes, when the occupant load reaches a certain threshold, the width of exit pathways, including stairs, must be increased to accommodate the larger number of people.

The standard set for a clear width of 1.42 meters is supported by safety regulations that take into account the need for quick evacuation and the potential bottlenecks that can occur when large groups of people are using the exit simultaneously. This specification ensures that there is enough space for individuals to escape without excessive crowding, which could lead to panic or injury.

In contrast, the other width options are insufficient for such a high occupant load. Dimensions less than 1.42 meters would likely create choke points, slowing down the evacuation process and potentially putting lives at risk during an emergency. Therefore, adopting the minimum width of 1.42 meters serves to enhance safety standards and is a critical component of successful building design for facilities that accommodate large groups.