As pictured in the example, magnetic locks installed to control access or egress often are located in a position that creates a headroom obstruction. According to section 7.2.1.2.2 of the NFPA 101®, Life Safety Code®, 2000 edition, “Projections into the required clear door opening width that are not less than 34 inches but that do not exceed 80 inches above the floor or ground shall be limited to the hinge side of each door opening and shall not exceed 4 inches.” This space allows for projections such as self-closing or automatic-closing devices, panic hardware and fire exit hardware. Projections exceeding 80 inches above the floor or ground are not limited.
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