![]() At a higher level, there is a “grand master” key that can be used to open all the doors in the building. In these systems, two or more groups of users can have keys that open their own doors as well as master keys that open all the other doors in their group. With a single key, each resident can open the door to their lobby, their home and the common areas, such as the garages, gardens, etc. This type of system can be used when there are several residential blocks sharing certain common areas. ![]() Lobby Master Keying Systems for Multi-block Residential Complexes with Shared Spaces ![]() On a case-by-case basis, this might also include the locks in the doors to people’s homes, storerooms, etc.ģ. Each user has access to the permitted communal doors using their key. This is the standard master keying system used in residential blocks. This type of master keying system can often be found in office blocks and small companies. All other keys in the system can open locks at the same level of access or lower, and there are also other keys that are only able to open one specific lock.Ī simple master key system consists of various doors that can be opened by each user with their corresponding key, as well as one master key that can open all the doors. The locks and keys in such a system are customised according to a mastering plan, which creates one or several keys capable of opening all the locks in the system – referred to as master keys. This first entry will differentiate between the four main mastering plans that exist, beginning with the simplest hierarchy systems and leading on to the more complex systems that exist today.īefore delving further into this topic, let us remember that a mastering system consists of a hierarchised system of access to a building or installation. This post is the first in a series in our blog that we will dedicate to the subject of key and lock mastering. You have simply witnessed a master key at work. Neither is it just a way to make things easier for themselves but also one that compromises their lock security. Perhaps you’ve seen someone you know open the door to their house with the same key they use to open their lobby door.
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