The access opening to fire escapes must be no higher than how many inches above the floor?

The access opening to fire escapes must be no higher than how many inches above the floor?

• A. 6
• B. 12
• C. 18
• D. 24

Answer: (B)

Access to a fire escape should be designed so people can reach the exit quickly and with minimal effort. Limiting the height of the access opening from the floor to no more than 12 inches reduces the amount of stepping up needed to reach the escape, which helps prevent trips or delays during a fire when visibility and footing may be poor. This keeps egress fast and safer for most occupants, including those juggling belongings or moving quickly in panic. If the opening were higher, even by a little, it could slow people down, increase the chance of missteps, and make it harder for anyone with reduced mobility or in a crowded corridor to reach the escape. The 12-inch limit represents a practical balance between building design and safe, rapid egress. Therefore, the maximum allowed height is 12 inches.

Access to a fire escape should be designed so people can reach the exit quickly and with minimal effort. Limiting the height of the access opening from the floor to no more than 12 inches reduces the amount of stepping up needed to reach the escape, which helps prevent trips or delays during a fire when visibility and footing may be poor. This keeps egress fast and safer for most occupants, including those juggling belongings or moving quickly in panic.

If the opening were higher, even by a little, it could slow people down, increase the chance of missteps, and make it harder for anyone with reduced mobility or in a crowded corridor to reach the escape. The 12-inch limit represents a practical balance between building design and safe, rapid egress. Therefore, the maximum allowed height is 12 inches.