Single Vs Double Cylinder Door Locks

While the single cylinder deadbolt only features a locking mechanism requiring a key on one side the double cylinder deadbolt has it on both.

Single vs double cylinder door locks.

Double cylinder locks use a key on both sides. Double cylinder door locks. The single cylinder deadbolt is the most common. Single cylinder locks are more common than double cylinder.

A simple thumb turn locks and unlocks the door. This is useful for doors with glass panels or near windows. A thumb turn opens it from the inside. Doors outfitted with single cylinders are unlocked with a key from the outside but do not require a key for unlocking from the interior of the property.

A double cylinder deadbolt has no thumb turn. Instead the door is unlocked with a thumbturn style lever. Single cylinder use a keyed on the outside and a thumb turn on the inside. This is the main difference between these two types of deadbolts.

Single sided deadbolts have a knob on the inside that is used to unlock and lock them from the inside. A single cylinder has a keyed entry on one side while a double cylinder has keyed entries on both sides. The two main reasons for this are efficiency and economy. This means that a key will be required to turn the lock both on the inside of the door and the outside.

It is found on front or back exterior doors and requires a key to open it from outside. The primary difference between single cylinder vs. Double cylinder deadbolts are locks that require a key to open from both the inside and outside. On the other hand single sided deadbolts require key to unlock from the outside only.

Single cylinder locks are usually less costly to purchase and install than double cylinders. This difference has one primary trade off. Single cylinder deadbolts are the commonest type in most homes. The difference is that you need to lock the door from both inside and outside with the key.

Single cylinder locks have only one lock cylinder as the name implies. This prevents intruders from entering and exiting easily. Double cylinder locks contain two cylinders. No one can break the glass and operate the thumb turn to enter.

Double cylinder locks is the number of cylinders. Just like single door locks you will also require to use the key to lock the door. It means that you will need to use the key to unlock the door no matter which side you are on.