How far apart can exits be located?

OSHA does not specify a minimum distance between exits. Generally, exits should be spaced apart by at least one third to one half the building length. OSHA has incorporated by reference the NFPA 101 Life Safety Code, which describes maximum travel distances to the nearest exit. Maintaining these distances is particularly important if a facility is undergoing construction or renovation work that temporarily makes one or more exits unavailable.

A typical travel distance would be 150 feet if a facility does not have an overhead sprinkler system, or 200 feet if the facility does have a sprinkler system. However, the specific travel distance allowed depends on factors such as the intended use of the facility (education, commerce, health care, etc.) and the materials present. For example, in warehouse areas where flammable materials are stored (as regulated under NFPA 30), the travel distance may be as short as 75 feet. Employers should check NFPA 101 or contact their state fire marshal or local fire department for details.