When inspecting replacement fire escape stairs approved by the AHJ, what is the minimum clear width required between rails?

The minimum clear width required between rails for replacement fire escape stairs is 18 inches. This requirement is established to ensure that there is sufficient space for individuals to safely traverse the stairs during emergency egress situations. An 18-inch width allows for the movement of individuals, including those who may be carrying objects or assisting others, reducing the risk of obstruction during an emergency evacuation.

Adhering to this minimum clearance is crucial for ensuring that fire escapes can be used effectively and safely, mitigating potential hazards in the event of a fire or other emergencies. In addition, this standard is often set forth by local codes, which reference the requirements of the authority having jurisdiction (AHJ).