Minnesota Department of Labor and Industry Orange bar
Minnesota Department of Labor and Industry

Opinion: Main exit door locks




Main exit door locks


1997 UBC 1003.3.1.8 - Type of Lock or Latch (Exception #1) and 1997 UBC 1007.2.5 - Panic Hardware (Exception #1)

Submitted by:

MN B.O. Uniformity Committee

Approved by:

Thomas R. Joachim, State Building Official

Issue Date:

January 12, 2000


Can the use of key-locking hardware as contained in these exceptions be applied to more than one door in a structure? Can there be more than one "main exit"?


Yes. There are a number of design situations which could have more than one "main" entrance/exit. This of course depends on the circulation patterns, location of parking lots and public ways, etc.


Many buildings have several accesses to the exterior that are utilized by the public, as it is impractical to have only on main entrance/exit from the parking areas or public ways.

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