Graphical Construction Glossary >> Doors. >> Door Hardware >> Key System

Key System

Various arrangements of the locks in a building to allow one or more keys to open multiple locks. For example a Master Key System.

As mentioned in the previous page lock manufacturers or locksmiths can provide Construction Cylinders to builders and developers that are used in the building until just before hand over to the clients. These construction cylinders are normally keyed alike.
The locksmith company will then supply and fix Special Keying to the clients specifications.

Keyed to Differ

Keyed System : Keyed Alike

Keyed System : Master Key

Key System : Maison Key

Key System : Grand Master Key

Images provided by Hafele Australia Pty. Ltd.

Keyed to Differ. This system is the standard one for locks sold over the counter at retail outlets. It is a basic one where every key is different and a key is needed for every lock

Keyed Alike means that every lock can be opened with one key. This is a particular favourite for private homes. A single key may be able to open any number of entrance doors.

Master Key In an area that has been keyed to differ a masterkey will open ever lock.

Maison Key These keying options are used in apartment blocks and office building and the like. Each apartment will be keyed to differ, but those same keys will be able to unlock communal doors like gates, garages and storerooms.

Grand Master Key An extension of the master key system where groups can have master keys and the grand master key can open every one.

• Key System:-Back to top
•  
• << BACK: Door Locks
• NEXT Mortise Lock : >>

If you didn't find exactly what you are looking for try this search tool that will search the site and the web.

"What can be added to the happiness of a man who is in health, out of debt, and has a clear conscience?
Adam Smith 1723-1790

"When we build, let us think that we build for ever."John Ruskin 1819-1900