Best Smart Locks For Thick Doors | Reviews + Guide

A Smart lock is an easy way to automate your home security. People find it easier than ever to protect their place from burglars, by having the ability to monitor and control their entrance remotely.

Thick Doors are a hassle as they take up space in your house, they can be a hazard if left open, and they are often difficult to handle. So, if you have a thick door that is difficult to open, then you might need a smart lock.

However, not all smart locks are the same. Some are more expensive than others, and some are more reliable than others. But how do you know which one is right for you? If you’re not sure, you should check out our article.

We’ve done the research and put together this list of the top 7 best Smart locks for thick doors, so you can easily find the right smart lock for you.

Our Testing Process for Best Smart Lock For Thick Doors

The testing team put several smart locks through a series of tests to find the best one for thick doors.

We wanted to make sure that we were testing the locks under the same conditions, so we took seven identical thick doors and locked them with the seven selected locks. We tested how well each lock held up against common attempts to break in, like picking, kicking, and shoulder-slamming. When testing smart locks, a number of factors could be taken into consideration. Following were the most important parameters on which we focused during the testing phase:

  1. Safety
  2. Durability
  3. Weatherproof
  4. Smartphone Compatible
  5. Cost

Based on extensive testing of the locks the team recommended Samsung SHS 3321- Digital Door lock as the best choice among all. The testers observed the entire installation procedure and credited it as the easiest to install the product. 

We also found out that the remote control, smartphone compatibility, and fingerprint scanner improve the user’s experience and convenience. As per the findings of the testing members, the best feature of this lock is the durability and security it offers. The locks were installed and were put through a series of tests like pushing, revolving, and kicking the door and this product survived them all.

Lastly, it proved to be resistant to all types of weather conditions whether it be hot or cold, and is also cost optimum.

Best Smart Lock For Thick Doors – Our Top 7 Picks!

For thick doors, it is quite difficult to find the best smart lock, because many of them are quite expensive. That’s why we’ve done the research and compiled a list of the 7 smart locks of the highest quality. These are all reliable, secure, and affordable. With these on your door, it’s practically impossible for anyone to break into your place.

1. Yale Assure Lock

Yale Assure Lever
Photo: Jeff Bortnick

Our Review:

The Yale Assure smart lock is a high-quality, innovative product that’s built to last. This innovative lock features stainless steel construction, which makes it extremely durable for thick doors.

This lock has a key-free touchscreen feature, so you can easily access your home or office and you don’t have to carry a key with you everywhere you go. You just have to enter your code to unlock your door.

The lock has a significant back-lit keypad feature that helps to ensure easy use in low-light situations, so you can easily see what you’re entering. This is an excellent feature, especially if you’re trying to figure out what the code is for your smart lock. You can also use the lock to create a PIN code that’s easy to remember so that no one else can get into your place.

After testing, we have found that the lock is also compatible with Z-Wave smart home or alarm system, so It will then work with your Z-Wave-enabled devices. It can be paired to your home or office wireless network via the included cable and smartphone app, so you can monitor your home remotely. The app will also display important information about the device, including battery level and the number of attempts that have been made to open thick doors.

It also comes with a 9V battery backup, so you can still access your home or office even when the power goes out. This is a huge plus for a smart lock because even if you lose power, you’ll be able to get into your home office.

Additionally, it has a simple replacement feature, which means you don’t have to purchase a whole new lock. You just have to buy the replacement bolts, so you can easily replace the deadbolt.

What’s more, the Yale Assure is compatible with Alexa, which means you can easily use voice commands to unlock your door. So you can control your smart lock from anywhere in the world.

Our Finding after Testing:

We put the Yale Assure Lock through a series of tests to see how it would perform. Firstly, we installed it on a thick door to see if it would fit properly. The installation was easy and the lock fit snugly against the door.

In addition, the testers found that the Assure Lock was able to be easily installed on doors of all thicknesses, and it provided a secure and reliable connection every time. Also, this smart lock for thick doors comes with a handy app that makes it easy to control and monitor your lock from anywhere.

Then our team tested the lock’s connectivity by trying to connect it to a smartphone. The connection was quick and easy, and we were able to control the lock remotely. Apart from that, we also tried to pick the lock, and it held up well against our attempts.

Finally, we tested the battery life by leaving the lock on for 24 hours. The battery lasted the entire day without needing to be recharged. Overall, we were highly impressed with the Yale Lock and would recommend it to anyone looking for a smart lock for thick doors.

  • Easy installation
  • Smartphone-controlled lock
  • Key-less access
  • Touchscreen
  • lightweight
  • No Led indicator
  • Doesn’t work with smart home systems that are not Z-Wave

2. Schlage BE365 Smart Lock

Schlage BE365 Smart Lock
Photo: Jeff Bortnick

Our Review:

Schlage BE365 Smart Lock is designed with unique high-quality silicone metal construction, which makes it durable enough to be installed on thick doors that are at least 19mm (3/4”) in thickness. It helps to improve the security of doors and offers the most advanced features for the user.

It comes with a 6-digit Camelot keypad that is user-friendly. The keys are large and easy to use, and you don’t have to worry about getting the digits wrong.

The lock can be pre-programmed with 2 passcodes which ensures that only you can access your home from now on. So, you don’t need to worry about someone breaking into your place because the lock is password protected. You just need to enter the code to access your home or office. That’s why we found the keypad to be exceptionally easy to use and we had no trouble programming the code ourselves.

One of the unique features of this lock is its secured keypad access, including silicone-coated numbers that illuminate when pressed, making it easy to enter your code in the dark.

Another nice feature is that this device comes with a 9V built-in battery, so you don’t have to worry about running out of power while you’re at home or the office. It provides up to 12 months of continuous usage.

You can easily replace an existing deadbolt yourself with no skill required which means you don’t have to buy a whole new lock.

Overall, we must say that this smart lock is ideal for anyone who wants a reliable, durable, and stylish way to secure their home or office.

Our Finding after Testing:

The Schlage BE365 Smart Lock was passed through a series of tests to monitor its performance. We tested it on a variety of door types, including thick doors, and were very impressed with the results. The BE365 was able to install quickly on all of the doors we tested it on, and it provided a very secure connection.

Additionally, the testers installed it on a door that was two inches thick, and it worked perfectly. Plus, we also tried it on a door that was four inches thick, and it still functioned well above expectations. The team was amazed by this lock’s ability to work on both thick and thin doors.

Above all, the Schlage Lock performed up to the mark in all of our tests. It was easy to set up and worked with thick doors without any issues. We were also impressed with its security features. 

In addition, we tested the lock’s ability to resist picking and bumping, and it held up exceptionally well. It was also able to withstand kicking, making it one of the most secure locks we’ve tested.

  • Durable
  • Ideal for thick doors
  • Secure
  • Easy to program
  • Not compatible with Alexa

3. Samsung SHS-3321 Digital Door Lock

Samsung SHS-3321 Digital Door Lock
Photo: Jeff Bortnick

Our Review :

Samsung SHS-3321 Digital Door Lock is a truly keyless lock, which makes it ideal for anyone who doesn’t want to carry keys around with them all the time.

The lock has a touch screen feature, which makes it user-friendly and easy to operate. You just have to touch the lock, which opens the door instantly. The touch screen display is large enough to read and operate your lock. So It is easy to program your passcodes and you can do it using the touch screen itself.

One of the unique features of this lock is that it has a silent mode, so you don’t have to worry about waking your neighbors or the neighbors who live next to you.

After testing, we found that it has a high-temperature sensor, which helps to prevent it from being damaged when the temperature gets too high. So, you can enjoy a secure and cool home even during the summer.

It has a very attractive design and is quite compact. It has a slim and sleek profile that makes it durable for doors as well as makes it easy to hide from sight.

The 9V battery is also a nice addition because it allows you to operate the lock without turning on the main power supply. So, you’ll never have to worry about leaving the door open again.

We really liked the Away mode feature, which means if you go frequently or leave the home for a long time, you can simply push the Home button to activate the Away mode. So, you don’t have to worry about your home or office being unattended for long periods of time.

If the batteries are running low, the door lock informs you through a specific sound or keypad Led so you can easily replace the batteries without having to check the battery life.

Additionally, it has High-Security mode ( Prank mode) so if you pull the Thick door forcefully or enter an incorrect password more than five times consecutively, the door lock sounds a warning and disables key authentication for three minutes to help prevent trespassing.

Our Finding after Testing:

To find the ideal smart lock that is capable of unlocking thick doors, we put Samsung SHS-3321 through a series of tests. We looked at how well it could handle different thicknesses of the door, how easy it was to install, and how secure the locking mechanisms were.

The Samsung SHS-3321 Digital Door Lock performed the best overall. It was easy to install and worked with a variety of door thicknesses. Also, the locking mechanism was very secure, making it our top-rated pick for the thickest door smart lock.

The testing team members investigated it on a thick door to see if it could handle the extra weight and pressure. The lock performed flawlessly, opening and closing the door without any major or serious issue. Then it was tested on a thinner door, and again it had no issues.

Even the testers tried to jam the lock with a piece of metal, but it was able to resist the pressure and stay locked.

Moreover, we mounted the lock on a door and tried to open it with a variety of objects, including a credit card, a ballpoint pen, and a paperclip. We then tried to pick the lock with a variety of tools, including a screwdriver, a hammer, and a chisel. Finally, we attempted to force the lock open with a crowbar and it resisted all of our attempts to open/unlock it.

Overall, we were highly satisfied with the performance of this door lock and would recommend it to someone looking for a reliable smart lock for their home or office.

  • Easy to install
  • Ensure high security
  • keyless entry
  • Reliable
  • Not compatible with Alexa

4. Narpult Smart Door Lock

Our Review:

The Narpult Smart Door Lock is designed for thick doors (up to 2 inches) that are difficult to open with a conventional door handle. It’s capable of handling up to 5 different keys for added security such as smartphones, keypads, fingerprints, IC cards, and mechanical keys.

It has a Wi-Fi voice-controlled feature, which means you can use it with Alexa or Google Assistant. So, you can simply talk to the lock and it will open the door for you.

After testing, we have found that You can connect the device to a Wi-Fi network and it will automatically connect to your home’s network. Once connected, the device will be able to sense if the door is open or closed, as well as to detect who is trying to access your house.

The lock also features premium fingerprint recognition technology that allows you to unlock the door with ease. This is one of the few devices that offer a biometric option. After your finger is scanned, the device will automatically unlock the door once it detects your fingerprint.

We really like the fact that you can also use the device to set up different preset time periods during which the lock will automatically lock, and an alarm can also be set to let you know when someone has entered the house.

It has a high-security feature, so when someone attempts to crack your code, this door lock will beep the alarm and will alert you that someone tries to open it.

This smart door lock has a sleek design, making it easy to install. We would definitely recommend this product to those who are looking for a multi-functional thick door lock.

Our Finding after Testing:

Narpult Smart Door Lock was put through a number of tests to analyze and monitor its performance. The first test was a door slamming test. The Narpult smart lock held the door shut tight, with no give whatsoever.

The next test was a sawing test in which we tried to see through the lock with a hacksaw, but the blade just bounced off. It was clear that this lock was built to withstand some serious force. The last test was a pick test. We tried picking the lock with a few different tools, but we couldn’t even get the tumblers to move.

We first installed the lock on a door that was two inches thick. We then tried to unlock the door with our smartphones, and it worked perfectly. Next, we locked the door with our phones and then tried to unlock it with the physical key. Again, it worked perfectly.

Finally, we locked the door with the physical key and then tried to unlock it with our mobile devices. This time, it took a few seconds for the phone to unlock the door, but it eventually did.

All in all, we were very happy with the Narpult smart lock and would recommend it to those looking for a reliable and secure lock for their sweet house.

  • Biometric access
  • Auto-lock after a preset time
  • Strong and reliable
  • Wi-Fi enabled
  • Doesn’t have a Motion Sensor

5. OrangeIOT Smart lock

Our Review:

The Orange I0T Smart Lock offers both traditional features like deadbolt operation and the convenience of keyless entry, the locking mechanism is built with premium quality components such as a sturdy metal cylinder, which is highly strong and durable for thick doors.

The Smart Lock has two main functions – it can be used as a lock for your home or apartment and it can be used as a deadbolt for your front door.

It has a backlit keypad on top of the cylinder, which makes it easier to use even in the dark.

After testing, We have found that the lock has 20 customizable codes users so you can use it to program it to open your door automatically at a certain time each day.

The device has a very simple design that allows the user to lock and unlock the door with just one touch.

It also has an auto-lock feature that will automatically lock the door after 10 to 99 seconds of inactivity. This means that you don’t have to worry about your door locking while you are out of the house.

The lock is IP54 certified which means that it can withstand high temperatures and humidity, making it perfect for exterior installations. As it is a weather-resistant device, you don’t need to worry about getting rained on when installing it outside.

We really like the fact that it has an anti-peeping feature, that allows you to protect your privacy and prevent intruders from gaining access to your home or office.

It also comes with a Strong battery that lasts a long, so you will be able to use it for a long time without worrying about battery drainage.

Additionally, it has a low battery indicator, which will show you when the battery level is getting low. So you can charge it easily.

Overall, it has proven to be reliable, strong, and secure. We recommend this product for those who want a lock for the thick doors of their home or office.

  • Weather-resistant
  • Reliable
  • Keyless entry
  • Durable
  • Doesn’t offer biometric authentication

6. Ultraloq Smart Lock

Ultraloq Smart Lock
Photo: Jeff Bortnick

Our Review:

The ULTRALOQ smart lock comes with a 6-in-1 keyless entry door including  Fingerprint ID, Anti-peep Keypad, Smartphone, Shake Open, and Mechanical Keylock that will help you save money on the key. This means that you don’t need to keep the keys in your pocket or purse, making it easier for you to access your home or office.

This door can be locked and unlocked automatically after an inactivity period.

The device also offers a bridge WiFi adaptor that allows you to control your lock from anywhere, using the mobile app.

All major smartphone applications are compatible with this device, which means that it can alert you if anyone attempts to enter your home without your permission.

It’s wireless so you can take it anywhere. With this Lock, you no longer have to worry about keys or fumbling with codes

We really like that it has an IP65 rating feature which means that it is weatherproof, so you can use it in wet conditions. If you live in an area where the weather is particularly unpredictable, you won’t need to worry about your device getting damaged by rain or snow.

After testing, we have found that it also comes with a power adapter that gives you strong battery life using a single charge. If you need to recharge it, you can plug the adapter into a wall socket or a USB port.

It also has a built-in microphone that lets you hear any instructions you give it. For example, you can tell the device to lock the door with a voice command like “Alexa, lock the door.” This makes the smart lock perfect for keeping kids and pets in your home safe, especially if they’re away from you.

We highly recommend this device to anyone looking for a reliable, affordable way to secure their home.

Our Finding after Testing:

Our testing process for the Ultraloq Smart Lock was very comprehensive. A two-inch thick door was the first to be installed. We then tried to open the door with a key, a card, and our fingerprint. The lock worked flawlessly with all three methods. We were also able to program it to work with our smartphones.

Next, we installed it on a door that was four inches thick. Once again, the lock worked perfectly. We even tried to open the door with a key from the other side and it still wouldn’t budge.

Finally, we installed it on a metal door. The lock was able to easily latch onto the door, provided a secure hold, and had no problem holding onto the door, even when we tried to pull it open with all our might.

In addition to that, we also liked how the app worked seamlessly with the lock, allowing us to control it remotely. The testers concluded their report by commenting that the deadbolt of this lock is designed for thick doors, making it one of the most effective locks on the market at present.

  • Lightweight
  • Durable
  • Weatherproof
  • Biometric access
  • Expensive

7. Smonet Smart Lock

Smonet Smart Lock

Our Review:

The Smonet Smart Lock combines a deadbolt lock with a built-in fingerprint scanner, touchscreen keypad, and access control system into a compact package that makes locking and unlocking your door easy.

The fingerprint sensor allows the device to be unlocked and locked within 0.5 seconds, this means that you no longer need to worry about your keys getting lost or misplaced, as it will easily allow you to unlock the door without using your passcode.

The device comes with a touchscreen backlit keypad which will Let you see in dark situations.

It has also proven to be compatible with all major applications for smartphones, which means that it can notify you if anyone attempts to enter with your permission. It also provides you remote access that allows Using your smartphone or tablet, you can unlock the door wherever you are.

It has an auto-lock feature that will automatically lock and unlock the door after a preset time of inactivity.

Additionally, it has a deadlock reset function that allows you to lock the door if you forget your passcode.

It also has a USB-powered feature that allows you to recharge the device without the need for a power outlet. This feature is very useful for people who are on the go and need to charge their devices.

Our Finding after Testing:

The testing crew of Smart Wise Home made the Smonet Smart Lock go through a rigorous testing process, to make sure it was up to our prescribed standards. They tested the lock on doors of varying thicknesses, and it performed exceptionally well on all of them.

Moreover, a test was conducted to see how well the lock held up against picking and bumping, and it held up well in both cases. We were also quite impressed with how easy it was to install and how quickly it responded to commands.

Further, we liked how thick the door it was able to accommodate. Our only complaint was that the instructions were not very clear. Besides, the team also tested the battery life of the product and found that it lasts for a very long time.

We then tested the lock by trying to open it with a credit card. The lock held up well and didn’t budge. Plus, we also tried to pick the lock with a paperclip, but again, it held firm. Finally, we tried to force the door open with our hands, but the lock held strong and in place.

Overall, we were very pleased with the performance of the Smonet Smart Lock and would highly suggest it to people searching for a quality smart lock for their business.

  • Fast unlocking and locking
  • Easy to install
  • Easy to use
  • Smartphone control
  • The touch screen is a little bit delicate

Best Smart Lock For Thick Doors – Buying Guide

When purchasing the smart lock for thick doors, there are so many different factors to consider and some of them can be very confusing. We have listed the most important factors that you need to look at when purchasing a smart lock, So you need to make sure that you consider the following things:


One of the most important factors that you need to consider when buying the smart lock for thick doors is security. You need to make sure that the device is secure enough to protect your home and keep your family safe. It must have a biometric security system, which means that it has a fingerprint sensor. This feature is very important, as it will ensure that only you can open the door and no one else.

Smartphone compatibility:

Before you buy a smart lock, you have to make sure that it has smartphone compatibility. You need to make sure that the device has the ability to be controlled by your smartphone. This is very important, as you can set up an alarm in case someone tries to open the door without your permission. You can also remotely unlock the door from anywhere, using your smartphone or tablet.


You should need to consider its safety. Make sure that the device has a deadlock feature. It will ensure that you can shut the door without forgetting your password. It also has an auto-lock feature, which will lock the door automatically after a preset time of inactivity.


The smart lock should be weatherproof., which means that it can withstand rain, snow, and humidity. This will also ensure that the device will stay in good condition and you will not have to worry about it getting damaged or damaged.


The most important factor that you need to consider is budget. So, you need to make sure that you are getting the best cheap smart lock, that you can easily afford.


In order for a security device to be effective, it must be made of durable materials, and enough to protect your home from damage. It must be able to withstand a strong force or impact, so it would be suitable for thick doors.

We hope that we have given you a clear overview of how to choose a smart lock that suits your needs.


When It comes to Smart locks there are many factors that you should consider. They should be easy to install and use, reliable for thick doors and you can also use them to replace an existing lock or deadbolt.

Hence, we’ve created this short article with all these points to make sure that you don’t have to look any further.

So, after having tested each smart lock in terms of cost, we would recommend OrangeIOT smart lock, it is not only budget-friendly but will also help you save a lot of time and effort when it comes to opening your thick doors.

We would like to recommend Samsung SHS 3321- Digital Door lock, It is very easy to install and you can use it to replace your existing lock. It is also very easy to use. It also has a fingerprint scanner and remote control. You can use it with an existing deadbolt or a wooden door frame. You can also use it to replace an existing lock. It is also very reliable. So, if you are looking for a safe and secure solution for your home, this smart lock is a perfect choice.

We hope that this post will help you in finding the best smart lock option for you. If you have any questions, feel free to ask us in the comments section below.


Is a smart lock safe?

On the whole, yes, It is. A smart lock is safe because it has a password or a PIN code which is a combination of 4 to 6 digits. If you set up the device properly, it will be very difficult for anyone to get into your home without your permission. Also, after a preset period of inactivity, the door will automatically lock. The device will also have a deadlock feature, preventing unauthorized access. It will provide a fingerprint sensor, which will ensure that only you can open the door. Remotely unlocking the door is also possible, from your phone or tablet.

How do you install a deadbolt?

To install a deadbolt, you need to drill a hole in the door frame. Then, you need to put the deadbolt into the hole. You can also use a tool called a deadbolt key to helping you put the deadbolt into the hole.

Can I use a smart lock with an existing lock?

Yes, you can use a smart lock with an existing lock. It will work seamlessly with it and you will not need to replace it. But it is always best to make sure that you have a backup in case the smart lock fails, and also by checking if you have an emergency key. If you do not have a backup, you can still get into your home by using a hammer and screwdriver.

Does the door have to be framed with wood or does the smart lock work with metal doors?

Smart lock works with both wood and metal doors. It will also work with any other type of door frame, including brick, concrete, and metal.

What is the difference between a smart lock and a keyless lock?

Smart locks work with an electronic keypad. They will be easier to use and they are more convenient than a keyless lock. However, they are also more expensive. It will also work with a deadbolt. You can use it with a wooden or metal door frame.

Whether a Smart lock is a perfect choice for 5inch thickness doors Or not?

Yes, it is. 5inch thick doors are heavy and they require a lot of force to open. So, using a smart lock will be easier for you. It will also give you peace of mind because you can use your smartphone or tablet to unlock the door remotely.

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