Single Vs Double Cylinder Door Lock

A key is required for locking and unlocking from both the exterior and the interior of the property.

Single vs double cylinder door lock.

Instead the door is locked or unlocked using a thumb turn style lever. Single cylinder locks are more common than double cylinder. 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. Double cylinder locks is the number of cylinders.

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. Double cylinder locks contain two cylinders. The single cylinder deadbolt is the most common. Just like single door locks you will also require to use the key to lock the door.

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. Replacing single cylinder locks with double cylinder models may reduce successful break ins by 50 or more. One important disadvantage is the extra safety concern. It is found on front or back exterior doors and requires a key to open it from outside.

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. The primary difference between single cylinder vs. A thumb turn opens it from the inside. Double cylinder door locks.

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. Without a button lock mechanism intruders cannot unlock the door manually. The two main reasons for this are efficiency and economy. Double cylinder locks are an extra layer of protection for home and business security.

Telling the difference between a single cylinder and double cylinder deadbolt is a simple task even for the untrained eye. On the other hand single sided deadbolts require key to unlock from the outside only. The number of cylinders inside a lock translates to the number of keyed entries on the door. A double cylinder deadbolt has no thumb turn.

Instead the door is locked or unlocked using a thumb turn style lever. It means that you will need to use the key to unlock the door no matter which side you are on. It ensures more security as unlocking from one. The difference is that you need to lock the door from both inside and outside with the key.

As already mentioned single cylinder locks are more common than double cylinder. A single cylinder has a keyed entry on one side while a double cylinder has keyed entries on both sides. Single sided deadbolts have a knob on the inside that is used to unlock and lock them from the inside. There is no thumb turn mechanism on a double cylinder lock.