4 Different Types Of Door Locks

Did you know that there are many types of door locks? Here are the most common types:

Door handle locks

They are usually found on bathroom doors. The reason why they are usually installed in the bathroom is because they are very insecure as you can easily pick them. They work by preventing the handle from rotating.


From their name, they are keyless. The locks are usually locked and unlocked using a unique code that is entered into a keypad. The cool thing with the locks is that they are very secure.

Since there is no keyhole you don’t have to worry of someone picking the lock. Due to their security level, they are found in commercial buildings and other places that require heightened security levels. In addition to being found in homes, you can also install them in your car.


They work just like other locks only that they aren’t manually applied. The locking and unlocking mechanism is run through electronics. The locks are usually opened and closed using a key or code. The good thing with them is that they can’t be picked using the manual lock picking tools. They also can’t be broken by brute force.

Since they are wired electronically, you have to rewire the system if you need to force your entry. Due to this they are very secure.


They provide security by using a solid metal cylinder that protrudes through the door jam and into the wall. There are many types of these locks with the most common ones being:

Single-cylinder deadbolt: they are the most common and are characterized by a keyhole on the outside of the door and a notch on the inside. The notch is the one that you turn in order to lock and unlock the door.

Double-cylinder deadbolt: it’s distinguished from the single-cylinder deadbolt by the fact that the portion inside the house has a keyhole instead of a notch.

Surface-mount deadbolt: here a D-shaped apparatus is mounted on the inside portion of the door. These locks play a major role of preventing a burglar from hammering off the deadbolt from the outside.

While deadbolt locks are very effective in their working, they aren’t very secure as you can pick them using the common picking tools.


These are some of the most common door locks. If any of the locks develops a problem you should contact a locksmith who will repair the lock professionally.