What is the minimum clear width of existing fire escape stairs?

The minimum clear width required for existing fire escape stairs is important for ensuring safe and efficient evacuation in the event of an emergency. In many codes and regulations, a minimum width of 600 mm is specified for fire escape stairs. This width allows enough space for individuals to descend safely, especially during high-stress situations like evacuations.

It's critical to adhere to this requirement as it contributes significantly to the overall safety of the building's occupants. Wider stair widths may be used in other applications or for newer constructions to accommodate larger crowds or more significant safety measures, but for existing structures, the standard of 600 mm is established to balance safety with structural constraints.