Article: Security 101: planning & creating a grand master key system.

FROM SMALL COMMERCIAL buildings to the largest institutions, one of the most useful structures in master keying is the grand master key system. This system is built from four basic types of keys: The grand master key, master keys, changes under the grand and changes under the master.

Door hardware distributors are almost always involved in setting up the key system for a new facility. In order to set up the best possible system, you should know something about the way the building would be operated as well as the specifics about the door hardware.

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Complete Access: the Grand Master Key

The grand master key ...

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