Corridor Dead End Requirements
March 19, 2013 at 3:40 PM
It is a common misunderstanding that corridor dead end restrictions in the IBC apply to all building conditions. These only apply to corridors and only to those corridors where the aggregate occupant load served is large enough to require two exits. The aisles in large office areas formed by cubicles less than 5 feet 9 inches are not regulated by dead end rule; these are regulated by the common path requirements. In a sprinklered office building this means that an aisle can have only a single directional travel for up to 100 feet, after that the occupant has to be able to go to two separate exits from there. However, if it is not an aisle, but a corridor serving greater than 49 persons, then the unidirectional travel (or dead end) is limited to 40 feet.