Keying & Key Systems
Keying is a term used to describe the arrangement of the keys in a building, assigning them into groups in order to limit the doors that personnel will be allowed to operate by key. Cylinders are used to control the locking functions of locks by the use of a key. Pin tumbler keys are usually grooved on both sides providing security by limiting the keyways into which it can be inserted within a cylinder. By varying the number, locations and shapes of the grooves and the thickness and height of the key, thousands of different key ways can be created.
Keying Systems provide convenience to the occupants of a building while maintaining a certain level of security. An alternative to the practice of keying is the installation of a Master Key System. It would be cumbersome for an owner to carry a key for all the locks in a building or group of buildings. Master keys must be carefully controlled as their loss could require all of the locks to be rekeyed.
There is a common misconception that a Master Key System implies greater security. However, the highest degree of security can only be found in a cylinder that is operated by its key and no other. Therefore, the more complex the key system becomes the less security it provides.