However, this advantage may be a problem if you have an emergency and need to get out of the house immediately. The double-cylinder deadbolt offers better security because it prevents access even if a window is close to the entrance, making breaking into your home more difficult. Instead, it uses two cylinders that need a key to open and close.

However, unlike single cylinders, this deadbolt lock has no twist knob. Just like its single-cylinder counterpart, it also requires internal mounting. With some basic tools, anyone can use a peephole to break through this lock type. This lock can open with a simple thumb turn in such a reachable location. A single-cylinder deadbolt is not ideal when the door is next to a window. This type can lock and unlock with the twist knob and the key cylinder. The twist knob is on the inside, while the key cylinder part of the lock is on the door’s exterior. This type mounts on the interior side of the door, along with a twist doorknob. Single-cylinder deadbolts are the most common type of deadbolt lock. Different Types of Deadbolt Locks Single Cylinder Deadbolts Understanding the fundamental differences should help you make a good choice. This article will go through the different types of deadbolt locks with some notes on their usage. However, deadbolts are one of the most common external door locks in residential applications. There are many different types of door locks. Whether renting an apartment or purchasing a home, it is vital to have the best security locks for your living space.

Deadbolt lock types