Single Cylinder vs Double Cylinder Deadbolt

cylinder deadbolt

People pay utmost attention to the interior and exterior before buying a house. The wall paints, pattern of tiles, and wood floors determine the complete look of your home. Meanwhile, you can not neglect the security and safety of your family members. Most modern homes have deadbolts installed in their main doors to keep intruders at bay. 

Even though you can find them easily in any market, it is advisable to research a bit about the types of deadbolts before making a purchase. You may want to choose between a single versus double cylinder deadbolt for your front door. Meanwhile, it is essential to learn what both of these deadbolts offer in terms of security and functionality. Both double-sided and single-sided deadbolt help secure the house but have different mechanisms. Let’s take a look at how both of these bolts work.

What is a Deadbolt Lock?

A deadbolt has a specialized mechanism that only allows entry by a key or a handle. This high-security system prevents entrance into the house by force or by using the incorrect key. A security deadbolt lock can help secure your office, a residential building, or home day and night. Also, these deadbolts are heavier than ordinary locks and provide a more secure environment for the residents.

How to Open a Deadbolt?

Deadbolt locks do not come with a spring which makes them more resistant to intruders. Inserting a key into the lock extends and retracts the bolt accordingly in the strike plate. The lack of spring makes it nearly impossible to open them with other devices. So, this mechanism provides additional strength to the door and keeps everyone safe inside the home.

What is the difference between single cylinder vs double cylinder deadbolt?

There are minor differences between single vs double cylinder deadbolt. The appearance and mechanism of both of these bolts differ that allows you to differentiate them easily. A single cylinder deadbolt has a key on one side and a handle or thumb press button of some sort on the inner side. Meanwhile, the double cylinder deadbolt has an opening for a key on both sides.

Which is better single or double cylinder deadbolt?

The differences between single and double bolts seem negligible but they operate differently and secure the place Chiang Rai Times. A double deadbolt key lock offers more security as it needs a key on both sides to open the lock. Meanwhile, the single deadbolt requires only one key on the outside. However, this lock may seem more practical and easier to use daily. So, you can choose between both of these devices depending on your needs and ease. Let’s look at the benefits and drawbacks of both devices to find out about the best deadbolt.

What are the single cylinder Deadbolt benefits?

Most homes use a single cylinder deadbolt because it is more practical and easy to use. It is also more convenient and cost-effective. Some of the pros of this deadbolt include its effectiveness in security, efficiency, and practicality. Besides, it saves time on unlocking the door as it only needs a key from one side. The thumb turn on the other side of the door allows the residents to lock or unlock the door. Also, the economical price is a plus for this type of lock.

What are the double cylinder deadbolt benefits?

This deadbolt is not available in every other household but it has its benefits. It enhances the security of the house with the double key mechanism. Mostly, people use this lock for glass panels that need high security. This bolt also prevents your kids and pets from roaming outside without supervision. Also, it prevents the intruders from entering the house as it only operates with a proper key. The double cylinder electronic deadbolt provides even more security and helps protect your home. Both of these door locks cylinders have their benefits but some drawbacks as well.

What are the single cylinder Deadbolt Drawbacks?

These deadbolts are less secure than the double ones. The mechanism of this deadbolt operates with only one key. Hence, it makes it easier for the intruders to enter the house. Moreover, children can get out of the house with this type of lock. They can easily unlock the door from the inside and roam outside. Overall, these deadbolts are a good option for home security but they are not as effective as a double deadbolt. So, you can choose your lock according to your needs and convenience.

What are the double cylinder deadbolt Drawbacks?

The double door lock offers high-level security for the house but it is not as convenient. It takes more time to unlock the door and is not the best option when in a hurry. This type of deadbolt can become a hindrance when you are in an emergency. Moreover, these locks can be dangerous in case of a fire inside the house. The paramedics and firefighters will not have access to the inside and may cause a loss of property. However, this type of lock is better for less secure areas such as glass doors or offices.

How to Pick Deadbolt?

There are many ways of picking deadbolts in case of an emergency. Also, sometimes the owners lose the key and need access to their property. One of the best ways is using a wrench tool. You can insert the pins of the wrench inside the keyhole and lift the pins until it opens. However, it needs some practice and patience. The more commonly known method is with a bobby pin. You can open double deadbolt locksets from the inside and outside using a small hairpin. Apply the torque carefully on the bobby pin until the door unlocks.

Are double cylinder deadbolts safe?

The double-locking doors have a specialized design to keep the house safe. These deadbolts offer a high level of security and make it nearly impossible to open without a key. Also, this lock is beneficial for households with children and pets. You do not have to worry about kids unlocking the door with this type of deadbolt.

Are double key deadbolts illegal?

These locks are illegal in some states in the USA. This restriction is because of the fire code. Sometimes, people become trapped in their houses during a fire. So, it becomes difficult to rescue them with a double cylinder deadbolt. It also becomes a hindrance when there is an emergency. Hence, check with your local authorities before installing this type of lock in your house.

Are two deadbolts better than one?

Two deadbolts can provide you extra security against intruders. Also, you can get one single and one double deadbolt for convenience. A single deadbolt is easier to operate and you can use it every day. Meanwhile, you can use the double deadbolt when going on a vacation or away from the house. Also, you can use the double deadbolt at night to sleep with peace.

Do I really need a deadbolt?

A deadbolt helps secure the house at all times and keeps potential robbers at bay. It is not easy to enter a home with an efficient deadbolt installed in the door. So, if you live in a region where the crime rate is high, or you want to invest in the security of your house, you can choose a deadbolt. However, there are some drawbacks of using this lock, as discussed earlier.

What are the top best deadbolt locks for home?

If you want to keep your home and family safe, invest in the best deadbolts available in the market. Most of the people go for Schlage double cylinder deadbolts. These bolts are nearly impossible to pick and provide a high level of security. However, if you want a modern option, look into the Kwikset double cylinder deadbolt. Both of these brands offer high-quality and efficient devices.


A home is not complete with a safe and secure main door. You can not invest money in the appearance of your house and ignore the security system. So, you can choose from a single-cylinder vs double cylinder deadbolt according to your needs. Both of these devices have their benefits and drawbacks. So, you can select one according to your preference or get both for your door.


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