Four kinds of locks
The four groups below are how we sort a conversation. A house deadbolt, a commercial mortise, a restricted cylinder, and a connected lock are not interchangeable. A single door can need more than one.
Lock families
Frequent questions
Which lock belongs on a house door?
A residential deadbolt or lever, and sometimes a multi-point set. A panic device belongs on a commercial exit, not on a house.
Where do I compare these locks?
In the showroom, next to the door they have to fit. A photo of the edge and the strike is enough to start.