The new wing was built with its own brand of cylinder, so the two-year-old keys from the original building do not open a single door in the addition. Staff are now carrying two separate key rings just to move around one workplace.
Beyond convenience, master key system design is a security decision. It sets out who can duplicate a key, how many levels of access exist, and what scope the chart assigns to a lost key at each level, from one door up to the whole property for a top master. A restricted or patented keyway is often part of the answer, since it cuts down on copies being made anywhere other than through the record the owner controls. The result is a system where access matches role, duplication is tracked, and every missing key's designed scope is already known rather than guessed at afterward.
Sound familiar?Toronto
Master Key System Design · Toronto
Scene 1
Not every group of doors needs its own level. The assessment looks for places where a sub-master is a real convenience, such as a department, a floor, or a set of storage rooms used by the same small team, rather than adding levels for their own sake. A hierarchy with more levels than the business actually uses is harder to manage and easier to get wrong later, so this stage is as much about deciding what not to build as it is about what to include, before any pins are cut or any key blanks are ordered.
Scene 2
The keying platform and keyway are chosen to hold every level the design calls for, plus a margin for doors that are likely to join later. Each cylinder is then pinned chamber by chamber to the planned bittings, with bottom and master pins stacked together to create the shear lines every level needs to turn that one cylinder. Getting this stacking right is what prevents a common mistake: a change key that, through an overlooked shared pin, quietly opens more than the door or keyed-alike group it was meant for.
Scene 3
Once the project is finished, a single question, who can get into this room, has a single answer, visible on the chart without needing to track down whoever issued a key years ago. Every level is listed against the doors it opens and the people or roles holding it, so the record stays useful long after the locksmith has left, rather than fading into the same guesswork the project was meant to replace.
What shapes the quoteDavisville Lock & Key Co.
FeesSame any hour
No. Some doors, such as a private office or a room with a single regular user, can reasonably stay on their own key outside the hierarchy if there is no real benefit to including them. The assessment is partly about deciding which doors belong in the system and which are simpler left alone, rather than assuming every lock has to join.
The current chart shows exactly which doors that level was designed to reach, which for a lost top-level master can mean the whole property rather than one group. Depending on how the key was lost and who else already holds that level, the usual options are repinning the affected cylinders and reissuing keys to the remaining holders; a restricted keyway lowers the odds of an unauthorized copy being cut but is not proof that one has not been made. Without a current chart, the first task is reconstructing that scope.
Once the new pinning is tested and confirmed working, the old keys no longer operate the cylinders they used to, whether or not they are physically collected back. Collecting them anyway is good practice, since it closes the loop on how many old copies were in circulation and lets the business retire them rather than wonder where they ended up.
TorontoOntario
Master Key System Design · Bedford Park, Davisville, Lawrence Park, North Toronto
Every square is one home in a hundred.
On-site assessment
The new wing was built with its own brand of cylinder, so the two-year-old keys from the original building do not open a single door in the addition.
(289) 217-4629, open 24/7.
On-site assessment preferred · (289) 217-4629, open 24/7
