Best Locks for French Doors – Top 5 Reviews, Guide, FAQs
It’s hard not to agree with us when we say that finding a suitable lock for your french door can be quite challenging.
This prompted us to round up the best locks for french doors and experiment and test them for many months.
In this post, we’ll discuss how locks for french doors work and what you should look for when going out to buy one.
Best Lock for French Doors
This incredible lock is very easy to mount onto your door and it keeps your door extremely secure even if there is no primary lock on your french door.
2nd Best Lock for French Doors
This lock employs 3mm steel that is extremely hard to get through. It can be seen from outside and takes less than 30 seconds to fit onto your door.
3rd Best Lock for French Doors
Coming with an adjustable bar, this product is suitable for french doors of many sizes. It’s affordable and adds a great layer of security.
After months of experimentation and testing, we’ve concluded these three to be the best of the best.
Now, let’s get into the detailed reviews for the top 5 best locks for french doors.
Best Locks for French Doors - Top 5 Reviews
This elegant lock impressed us immensely through many of its aspects such as its design, its security and its ease of use. As you know that french doors are weak points on your property that burglars tend to exploit. This lock does a wonderful job of securing those doors for you.
It took us no more than a minute to fit this lock onto our french door and no tools were required either. We tested the security of this lock for weeks and found that it was as sturdy as ever.
Features of Patlock Security Lock for French Doors - Best Locks for French Doors
Dimensions: 16.5 inches x 1.7 inches x 3.1 inches
Weight: 2.03 pounds
White in Color
Pair of Tamper-Resistant Spindles included
Comes with window stickers
With the use of its 3mm steel inside, this lock makes your french door extremely secure. We found that it was next to impossible to even bend this lock, let alone try to break into it.
It’s quite a big lock that is visible if you look from the outside. You may think of this as a negative but it’s actually a positive as it acts as a visual deterrent for burglars that are thinking of breaking into your home.
Features of Tough Patio French Door Lock
Dimensions: 13 inches x 2.5 inches x 3 inches
Weight: 2.5 pounds
Comes with two keys
Made from polished Brass
White, glossy finish
We were skeptical before testing this product about its security. Our skepticism owed to the fact that locks that have too many moving parts often have many weaknesses. This lock, however, impressed us greatly. Its adjustable width bar makes it suitable for french doors of many different sizes while not compromising on the security it offers at all.
We attempted to break into this lock over many months. We tried to do so by exploiting the adjustable width bar but found that the lock held its own and thwarted our attempts effortlessly.
Features of Avonstar Classics Range Patio Door Security Lock
Dimensions: 14 inches x 2 inches x 2.5 inches
Weight: 1.9 pounds
Available in Stainless Steel, high-finish Brass or White
Fits most double french doors
Easy fitting mechanism
This lock is extremely low-profile and is perfect for you if you don’t want to advertise the fact that you have a hefty lock on your french door. It’s small and compact which means it won’t come in the way when you’re using your french door. Don’t be fooled by its small size though. It may be small but it’s extremely durable and you’ll find that it makes your french door astoundingly secure.
Features of Alise MS9001 Stainless Steel Flip Latch Gate Latches Bar Latch Safety Door Lock
Dimensions: 3.8 inches x 0.4 inches x 2.6 inches
Weight: 2.88 ounces
Made from stainless steel
Available in packs of 1 or 2
Thickness of the latch: 2 mm
A flush-bolt lock is often preferred by many people to secure their french doors. This product is definitely the best one of its kind that we found on the market. It comes in two lengths: 6 inches and 8 inches. It also comes in two different colors: stainless steel and matte black. This gives you options if you have a darker-colored door and you want the lock to blend into it well.
Features of Sumnacon 2 Pcs Door Flush Bolt
Dimensions: 8.0 inches x 0.79 inches x 0.67 inches
Weight: 9.4 ounces
Comes with 1 flush-bolt, 8 screws and 2 strikes
Made from stainless steel
Best Locks for French Doors - Buyers’ Guide
How important is a french door lock?
A lock for french doors is incredibly important. A lot more important than you think and the main reason for this is that french doors by themselves are incredibly easy to break into.
This is extremely obvious when you look at how french doors are designed. French doors are typically a pair of doors consisting of many glass panes that span most of the doors except for their edges. These glass panes are a weak point that burglars often exploit.
What are the different types of locks available for french doors?
There are a number of different types of locks that you can use to secure your french door(s) that are available in the market. However, they can vary in many aspects such as ease of installation, security and durability. The main types of locks you can use to secure french doors are:
A mortise lock operates by having a mortise or a pocket into which the bolt of the lock fits into. In normal doors, this pocket is usually located inside the wall frame next to the door. In the case of french doors, one side of the french door has the pocket while the other side has the lock itself.
Flush bolts are types of locks that are quite suitable for french doors. They are often used for pairs of doors in order to secure the inactive leaf that is projecting into the frame head and into a floor strike. The active leaf typically has a lockset that can latch into a strike that is typically mounted on the inactive leaf.
What are some factors to think about before buying a lock for french doors?
Here are some factors to keep in mind before you go out and buy a lock or locks for your french door(s):
Ease of Installation
Nobody wants to spend hours mounting a lock onto their french door. This is especially important because if you’re having difficulty mounting the lock onto your door, there could be a chance that you don’t fix it properly onto your door. This could lead to security flaws.
You need to decide whether you want to get a lock that is visible from the outside or invisible. Sometimes a visible lock can act as a visual deterrent for burglars. At other times, it can alert them that there’s a lock on your door and they can plan to come back at a later time to break in.
How can I make my french door more secure?
You’ve made your french door a lot more secure by installing a lock onto it but it still has many security flaws.
One thing you can do is install shatter-proof glass in the glass panes of your french doors. This enables them to not be broken with a brick or anything similar that’s heavy.
You can also get security hinges fixed onto your french door so they can’t be removed easily from the outside.
Does it cost a lot to secure a french door?
It may seem overwhelming when you first start searching for options to secure your french door. In reality, with the right research, you can find great options that can securely lock your french door without being too harsh on your pocket.
Best Locks for French Doors - FAQs
What is a french door?
A french door is typically a pair of doors that contain many glass panes that span the entirety of the door except for its edges. The edges of these doors are typically designated for hinges, locks and weatherstripping. They are usually found as openings to backyards in most houses.
How secure are french doors on their own?
French doors are incredibly easy to break into if they are not properly secured. Most people argue that a french door is often the weakest point of security in your entire home.
Is it hard to secure a french door?
It may seem difficult at first to properly secure a french door because they operate differently than normal doors. However, you will find that if you do the right research, you can come across options that do a great job of securing your french door.
Are french doors easy to get into?
French doors definitely have many security flaws such as glass panes and outward hinges that can be exploited by burglars. However, you can address these flaws through locks, shatter-proof glass and security hinges. After that, your french door can become quite difficult to break into.
Does it matter if my french door is an exterior french door or interior french door?
Most locks that you find online and in the market are often quite versatile. They can be mounted onto all kinds of french doors no matter if they are exterior or interior. However, there do exist some locks that are only meant for exterior or only meant for interior french doors. In that case, we recommend that you confirm what type of french door the lock you intend on buying is meant for.
How do I implement a 3-point locking system in my french door?
A 3-point locking system consists of a mortise lock between the pair of doors on your french door. Alongside that is a metal rod that extends up into the door frame and a metal rod that extends down into the floor as well. These three points of security ensure that your french door is properly secured.
Won’t the burglar just break the glass to get in? Why does my lock matter?
Glass panels on french doors are often not large enough for an entire person to fit through. You may be worried about a burglar breaking a glass pane and reaching in to open the door from the inside. This problem can easily be fixed by mounting a lock onto your french door that can only be opened with a key or code.
Can I use a sliding glass door lock on my french door or vice versa?
For the most part, yes. Most locks are quite versatile and if they can be mounted onto a sliding glass door, they can often be mounted onto a french door as well. However, we do recommend that you specifically ask the manufacturer if this is possible before you buy such a lock.
How do I maintain my lock for my french door?
Locks for french doors are often quite sturdy and don’t require a lot of maintenance. All you really have to do is lubricate your lock with some lock lubricant every few months and your lock should be good to go.
Is it worth it to install a high-security french door lock?
You can often get high enough security on a french door if you employ a three-point locking system. However, that’s sometimes not enough for people so if you want to install a high-security french door lock, we recommend that you go for it. After all, security for the people inside your home and peace of mind are two things that are always worth it.
French doors can be a weak point of security in your home but today, we’ve seen locks that have proven that they can definitely secure them extremely well.
In the end, we have to give the crown to the Patlock Security Lock for French Doors. Not only is it incredibly secure, but it’s also extremely elegant and easy to install as well.
And with that, we’re at the end of our post for the best locks for french doors.
Give us feedback and let us know what lock you’re using for your french doors.