What is the difference between Mortise, Privacy, Passage and Dummy?
A mortised door is usually an older door that has a longer, thinner, more narrow lock body and can be used as a passage or privacy. To use it as privacy, you have a skeleton key that unlocks and locks from both sides of the door. To use it as a passage you would simply not use the key or lock the door. A passage function (tubular latch) is used on a closet or hallway door and does not lock. A privacy (tubular latch) is a good doorset to use on a bedroom, bathroom or any other interior door you are wanting to lock. A dummy knob does not turn and does not function as a working lock. A dummy function is typically used on doors with some other device which holds the door closed.
