Single Vs Double Cylinder Door Lock

The single cylinder deadbolt is the most common.

Single vs double cylinder door lock.

Single and double cylinder deadbolts and door locks single cylinder deadbolts and handlesets are operated with a key from the outside but do not require a key for locking or unlocking from the interior of the property. It is found on front or back exterior doors and requires a key to open it from outside. As already mentioned single cylinder locks are more common than double cylinder. Single cylinder deadbolts are the commonest type in most homes.

It ensures more security as unlocking from one. Without a button lock mechanism intruders cannot unlock the door manually. There is no thumb turn mechanism on a double cylinder lock. One important disadvantage is the extra safety concern.

A single cylinder has a keyed entry on one side while a double cylinder has keyed entries on both sides. The primary difference between single cylinder vs. This prevents intruders from entering and exiting easily. It means that you will need to use the key to unlock the door no matter which side you are on.

Just like single door locks you will also require to use the key to lock the door. Telling the difference between a single cylinder and double cylinder deadbolt is a simple task even for the untrained eye. These locks require a key to lock or unlock the door both from the outside and the inside making them a little safer in one regard. Single cylinder deadbolts entry knobs and handlesets are operated with a key from the outside but do not require a key for locking or unlocking from the interior of the property.

A single cylinder deadbolt has a slot for a key on one side while the other side features a knob or turning mechanism of some sort usually a thumb turn that looks like a simple lever that turns much like a key would. Instead the door is locked or unlocked using a thumb turn style lever. A double cylinder deadbolt has no thumb turn. Instead the door is locked or unlocked using a thumb turn style lever.

Double cylinder door locks. Double cylinder locks are an extra layer of protection for home and business security. Double cylinder locks is the number of cylinders. A thumb turn opens it from the inside.

The number of cylinders inside a lock translates to the number of keyed entries on the door. Single cylinder locks are more common than double cylinder. Single sided deadbolts have a knob on the inside that is used to unlock and lock them from the inside. On the other hand single sided deadbolts require key to unlock from the outside only.

For example if there s a window on or nearby the door think of sidelight windows next to a door for example someone could break the window reach in and turn the deadbolt of a single keyed lock. Double cylinder deadbolts are locks that require a key to open from both the inside and outside. The two main reasons for this are efficiency and economy. Double cylinder locks contain two cylinders.