In order to provide an effective barrier to prevent fire, a door has to remain closed within the frame.

The mortise lock is a very popular and ancient design that has stood the test of time. They are sturdy and reliable. Their structures are also relatively diverse. Modern mortise locks are a popular lock often used in the security industry of commercial locksmiths. Its rugged design has stood the test of time. Mortise locks can be used for decades. In fact, these mortises exist in old houses and buildings and are resistant to bad weather and time. The mortise lock has a long life, so understanding the structure and principle of the mortise lock can provide great help for installation and maintenance.

It is quite straightforward to install a mortice lock to a wooden door but it does require accurate measurements and cutting so that the mortice lock and striker plate install correctly.