How to Lock Double Doors That Swing Out

Doors come in a variety of shapes and sizes, but one type that can pose particular challenges when it comes to security is the double swinging door. While most single doors employ standard locking measures, you need to think about how best to secure your entry with two outward-swinging leaves.

How to Lock Double Doors That Swing Out

In this blog post, we’ll look at the different methods available for making sure that your double door stays safely shut when needed. From locks and latches to chains and alarms, there are plenty of reliable ways out there for keeping intruders from entering your property.

So if you’re looking for improvements or just want some tips on how to lock double doors that swing out to protect yourself against unwanted visitors, keep reading!

Step-by-step Guidelines on How to Lock Double Doors That Swing Out

Step 1: Choose the Right Lock

The most important step for making sure your double doors are secure is to choose a lock that will fit properly and be difficult for an intruder to bypass. Choose a lock with a long deadbolt, like one made of steel, and ensure that it has at least three inches of throw to make it more difficult to be picked or forced open. Make sure the lockset is compatible with your door type and size.

Step 2: Install the Locks

Once you’ve got your locks, the next step is to install them. Depending on the type of doors you have, this may require some drilling or special tools. If you don’t feel comfortable taking on a DIY task like this, then it’s best to get in touch with a professional locksmith who can install them for you. If you’re confident in your abilities, then make sure you follow any instructions that come with the lockset carefully.

Step 3: Fit the Latch Plate

Adding a Strike Plate Reinforcement

When fitting the latch plate, make sure that it covers at least two inches of the door jamb and ensure that the screws are securely fitted. This will help to make it much more difficult for an intruder to force their way through your doors. You might also want to consider adding a strike plate reinforcement for extra protection.

Step 4: Install Door Chains

Door chains are an effective way of stopping intruders from being able to enter your home even if they manage to unlock the doors. They should be installed at a height that makes it difficult for anyone to reach up and remove them, such as just below shoulder level. This will force anyone who wants to get inside your property to knock or ring the doorbell instead.

Step 5: Install Door Bolts

Door bolts are another security device that can be on double doors. These are small bolts that fit into holes drilled in the door frames, making it impossible for intruders to open the doors unless they have access to the correct tools. It’s important to make sure that your door bolts are strong and resistant to tampering. Otherwise, an intruder could easily force them open.

Step 6: Install Alarms

Installing an alarm system is one of the best ways to deter intruders from entering your home. They serve as a visible warning sign and will sound an alert if someone tries to force their way through your double doors.

That should be enough to make most intruders think twice before trying anything. You should also consider installing motion sensors that will detect any movement near the doors and sound an alarm. It’s also a good idea to have an emergency response system set up that will alert the police or security personnel.

Step 7: Install CCTV Cameras

Place Your Cameras in Strategic Locations

Surveillance cameras can help to deter intruders as they will be aware that their movements are being monitored. Place your cameras in strategic locations around the perimeter of your property, including near the double doors. This will allow you to keep an eye on who is entering and leaving the premises. But remember to ensure that your cameras are connected to power sources or have battery backups.

Step 8: Install Motion Sensors

Motion sensors are a great way of ensuring that no one can enter your home without you knowing about it. These devices detect movement, triggering a light or alarm if someone approaches the double doors. This can alert you to any potential intruder before they even have a chance to try and break in. Remember to place the motion sensor in a position where it won’t be triggered by pet movement or other false alarms.

Step 9: Keyless Entry Systems

Keyless entry systems are a great way of providing extra security for your double doors without having to worry about carrying keys. You can have these installed so that you can open and close the doors using an access code, card or even a smartphone app. It’s important to make sure that you choose a secure code that is not easy to guess.

Step 10: Install Window Locks

Windows are another potential point of entry for intruders, so it’s important to ensure they are securely locked as well. Choose locks that will provide maximum security while still allowing adequate ventilation. Before you install them, make sure that they are compatible with the type of window frames you have. Otherwise, you could end up with an inefficient locking system.

Step 11: Reinforce Door Frames

Reinforcing door frames is another good way to make sure your double doors stay secure. This involves adding metal plates or bars over the top and bottom of each frame, making them much more difficult to force open. Remember to check that the reinforcements are firmly fitted and will not wobble or shift when pressure is applied.

Check That the Reinforcements Are Firmly Fitted

Following these steps will help you keep your double doors secure and ensure that any potential intruder is deterred from trying to break in. Be sure to regularly check all locks, chains and bolts are working properly so you can rest assured knowing your home is safe.

Do You Need to Use Professionals?

Although these steps offer advice on how to lock double doors that swing out, if you’re unfamiliar with installing locks and security devices, it’s best to get in touch with a professional locksmith who can provide the necessary expertise. They will be able to advise which locking devices are best suited for your home and make sure they are installed correctly.

How Much Will It Cost?

The cost of locking your double doors will depend on the type and amount of locks, chains and bolts you need to install. It can range anywhere from a few hundred dollars for basic locks to several thousand for more sophisticated alarm systems.

Finally, always make sure that you have adequate home insurance so that in the case of any break-ins, you can be sure you are covered.

It’s also a good idea to regularly check your locks and replace any that are damaged or worn out as this can significantly improve the security of your double doors. Taking these steps will help keep your home safe and secure, giving you peace of mind that your family is protected.

Frequently Asked Questions

Q: What is the Best Type of Lock for Double Doors That Swing Out?

A: The best type of lock depends on your individual security needs. If you want maximum security, then a mortise lock is recommended as this provides the best protection against forced entry. Alternatively, keyless entry systems can provide quick and convenient access without having to worry about carrying keys.

A Mortise Lock is Recommended

Q: How Often Should Double Door Locks Be Checked?

A: In order to keep your home secure, it is important to regularly check that all locks and bolts are in working order. This should be done at least once a month to make sure that any security features are not compromised.

Q: Can Double Doors Be Locked from the Outside?

A: Yes, most double doors can be locked from the outside using locks or bolts. However, it is important to ensure that these locks and bolts are securely fixed to the door frame before you leave your home. This will prevent any potential intruders from being able to access the doors.

Q: Can I Reinforce My Double Doors?

A: Yes, reinforcing double doors is a great way of making them more secure. This involves adding metal plates or bars over the top and bottom of each door frame, making them much more difficult to force open. This can be done by a professional locksmith or you can even do it yourself with the right tools and materials.


Having double doors that swing out can be a great way to create an open-air feeling in your home. However, ensuring these doors have proper locks is essential for security and privacy.

With a few simple steps on how to lock double doors that swing out, you can ensure that your double swinging door is safely locked! You may need to purchase a specialized lock equip with two latch bolts which will provide additional protection to your double swinging door.

Additionally, make sure to regularly inspect your locks to ensure they are sufficiently secured and properly maintained. Sometimes heavy-duty mortise handles come pre-installed in newer homes and these too will offer extra stability when it comes to keeping your home safe and sound.

With the right tools, knowledge and diligence you can keep those double swinging doors firmly shut! So take some time today to evaluate the security of all the exterior doors in your home and make sure they’re as secure as possible for peace of mind for you and all who live there.

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