How To Lock French Doors Interior

How to choose door locks for French doors

Tuesday, September 14, 2021 is a Tuesday. What is the best way to go about purchasing the proper door hardware for French doors? Prior to making your way to the hardware shop, make sure you understand the following information. READ ON FOR MORE INFORMATION When it comes to creating an open, light environment in your house while yet preserving the option for privacy, French doors are a fantastic choice. They are frequently made entirely of glass from top to bottom and are a simple way to add a little individuality and charm to a room.

Prior to making your way to the hardware shop, make sure you understand the following information.

Pre-shopping checklist

There are a few things you should keep in mind regarding your door before making your final decision on the hardware. First and foremost, take note of how it has been prepared. Are the bore holes in the door already drilled, or will the hardware be mounted on a solid panel that will be drilled later? This will assist you in determining the functionality of your gear. In the case of doors that do not have bore holes, refer to this door prep checklist to confirm that your door has been prepared according to standard specifications.

Due to the fact that you will have both a left and right handed door, be sure you select both a left and right handed door lever and a right handed door lever.

Interior french doors – no bore holes

Do you have a room that you’d want to keep distinct from the rest of the house but are concerned about making it seem too closed off or cramped? Using French doors in your home office or den is a great option when you require seclusion or noise control while yet retaining an open vibe. Interior French doors are very frequent for bedroom entrances, giving the area a bigger, more formal atmosphere. They are especially common for spacious closets, as well. They are sometimes referred to as double doors in some circles, and they can be solid or have head-to-toe glass panels.

When the capacity to latch or lock the door is not required, they are sometimes employed as ornamental door handles instead.

Purchase a enough number of non-turning door knobs or levers for the inside side of bigger rooms that you can really walk into.

Non-turning hardware is frequently supplied as a single lever or knob, but in other situations, you may purchase the items in pairs or in multiples of one.

Our refusal to turn Schlage CustomTM Door Hardware will always be sold in sets of two. This also implies that you will not be required to select a handling for curved levers because you will receive both variants of the product.

Interior french doors – with bore holes

Some rooms, such as a master bedroom, might benefit from having doors that can be locked, or at the very least from having a latch or a knob that can be turned. You’ll want to use French doors that have already been drilled with a cross bore hole on one side and a latch bore on the other to complete this project. Assume that the cross bore hole is located on the right-hand door frame. Choosing a knob or lever with a BedBath / Privacy function will give you the choice to lock the door if you want to.

Afterwards, you may pick a non-locking/dummy lock for the left-handed door if necessary.

Exterior Patio French Doors – with bore holes

Typically, exterior French doors are utilized to get access to outside living spaces, such as a sunroom or patio, or they are used to go out to the backyard. Using them, you may build a stunning transition from one room to another. A pair of double doors at the front of your house creates an appealing entranceway. Choosing an outside set of doors that is readied in the same way as the internal doors with bore holes on one side is a good idea, but if you want to add a little more protection, make sure the doors have a second bore hole to accommodate a lock as well.

Some homeowners opt to install a twin cylinder lock in order to increase the level of protection even more when using glass doors.

Exterior Double Doors – with 3 bore holes

A handleset is recommended when you want a more official appearance or when your door has three bore holes. On the inactive side of the door, you have the option of installing absolutely nothing. However, if you want to complete the appearance, you may install the non-turning/dummy function of the same lock combination that you used for the active side. In other words, if you acquire aSchlage Century entry handleset with lock for one side of the door, you may also receive aSchlage Century inactive handleset for the opposite side.

Exterior Double Doors – with Electronic Locks

In what way do electronic and smart locks differ from traditional locks? You may install them on your French or double entry doors just like you would a mechanical deadbolt since all of our electronic and smart locks are designed to work with regular doors. The front entrance handle on the double entry door above is in the form of theCamelot and is secured with a Schlage Sense® Smart Deadbolt. In the event that you only have two bore holes, you might install a passage knob or lever beneath your smart or electronic lock.

We would be delighted to assist you in your quest for the ideal French door hardware.

And if you’re seeking for more French door design inspiration, have a look at this invigorating guide to the art of the French door. x Keep up with the newest style and design advice, trends, DIY projects, product updates, and smart home news by subscribing to our newsletter.

How to Lock French Doors Interior in Only 3 Easy Steps?

Do you want to know how to lock french doors from the inside? Using the template, mark the locations of the holes on the door and the door jamb. Making a hole in the door using a hole saw is a good idea. In order to make the door jamb, chisel away a part of the jamb that will fit the base plate. Make a hole that is large enough to accommodate the bolt. Screw the bolt into place and tighten it down with a nut. In order to keep your home safe, you must have the proper interior french door lockset.

You may install the item on your own by following the instructions in this guide.

What You Need

Before you can begin with the instruction, there are a few things that you must first gather. Some of these may already be in your toolkit if you look closely. If you don’t have any, you can pick up a few at the grocery store.

Flush bolt

Flush bolts are one of the most prevalent types of locks for French doors. The majority of the time, a flush bolt is fitted on twin doors when one door is dormant while the other is in operation. The bolt is sunk into the edge of the door and is pulled higher and downward into the door jamb in order to block the door from opening. Prior to purchase a flush bolt, you should measure the size of your french door as well as the total height of the door. In addition, assess if the corners are square or round.

Chisel and Hammer

A mortise chisel is the most effective instrument for making a mortise. Withstanding powerful blows from a mallet, it is also capable of cutting against the grain. When selecting a mortise chisel, it is important to look for one with slightly beveled sides and strong edge holding properties. The appropriate sort of hammer, with twice the surface area of the chisel’s head, is essential for preventing the chisel from cutting into the material. In addition, the hammer must be heavy enough to make the chisel do its job properly.

It features a flat end on one side and a round end on the other.


A pencil is required due to the fact that you must mark the wood. You may use a carpenter’s pencil since it is built for making precise marks on a variety of materials such as wood, concrete, and other types of stone. Because of its flat body, this pencil is less likely to roll around on work tables or floors when compared to a traditional pencil. Soft, hard, and medium lead are the three varieties of lead from which you may pick. Alternatively, if you do not have a carpenter’s pencil, you may use a standard pencil, but make sure that the lead is firm enough to produce a distinct impression.

Power drill and Hole saw

To make a hole in the door, you’ll need to employ the usage of a power drill. You can also use it to turn screws by swapping out the bit with a screwdriver tip and using it that way. You might pick a corded drill with power that can reach up to 110 volts when connected to an electrical cord. When drilling, a cordless drill is ideal since it is battery-powered, allowing you to move about freely while drilling. In addition to a power drill, you’ll need a hole saw for this project.

Because it can create wider holes than drill bits, it is more efficient to utilize than drill bits. There are several sizes of hole saws available, so verify the diameters of the needed holes in the template to establish the size of the hole saw that you will need.

How to Lock French Doors Interior

First and foremost, you must decide where you want to put the flush door bolts before marking the holes in the door and door jamb with a pencil. Once you have finished with this, you may use the template as a reference to indicate the holes that will be necessary. Make certain that the pencil is used to note the correct location.

Step 2: Drill the holes

After you have indicated the locations of the holes, you may begin drilling. Using a hole saw, drill a hole in the door frame. Create a piece of the door jamb that will accommodate the whole base plate and then drill a hole that is deep enough to allow the bolt to pass through it.

Step 3: Install the whole bolt

Installing the base plate on the door jamb should be your first order of business. Before you can do that, you must first drill the holes that will be used for the screws. Once this is completed, you may place the base plate into the mortise hole and fasten it with the screws that were previously installed. Place the door bolt in the hole that you previously cut in the door and tighten it down. The bolt must be able to slide smoothly into the hole. If this is not the case, you can chisel the hole until the bolt sits squarely on the doorframe again.

Screws are used to hold the bolt in place.


Do you think our tutorial on how to lock french doors from the inside was helpful? You can now secure and protect your privacy by locking your french door with a key. Door knobs for french doors are also available, which you can use to improve the overall appearance of your doors while also increasing their security. If you find this post beneficial, please forward it to your friends and family members who may be interested in learning how to lock their french doors from the inside out. You are also invited to share your opinions on this lesson with the community. : french door lock

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Quick Answer: How To Lock Double Doors Interior

The 5 Most Effective Methods of Securing a Bedroom Door Install a Keyless Door Reinforcement Lock to protect your home. Using a Security Bar is the quickest and most effective way to reinforce a door from the inside. Install a door lock with a keypad to improve the security of your bedroom door without the need for keys. Make use of a Strike Plate Lock: It’s a simple and long-lasting solution.

See also:  How To Update Interior Doors

Can you put a lock on double doors?

You have the option of installing a lock on your French doors. A set of double doors, which may be referred to as French doors if they include glass, is made up of two door leaves that are fitted in a single frame. While these units may be secured with the majority of ordinary locksets, they must also be supplied with flush bolts in order to keep the inactive leaf from falling out during operation.

How do interior french doors lock?

Flush bolts are one of the most often used types of locks for french doors. The majority of the time, a flush bolt is fitted on twin doors when one door is dormant while the other is in operation. The bolt is sunk into the edge of the door and is pulled higher and downward into the door jamb in order to block the door from opening.

How do you secure a French door that opens?

Instructions on how to secure an outward-opening door (Including FrenchPatio Doors) Secure the hinges to prevent your door from being pulled out from under you. Prevent forced entry into your home by installing a Latch Guard. Door Lock Barricades Designed for Outward Swinging Doors are the best option for you. Install a security bar on the outswinging door. French doors should be secured with Patlock.

Can you put a lock on French doors?

French door locks with high levels of security. Install a commercial quality double sided lock on the active side of the door, or alternatively, a commercial grade single sided deadbolt. Using the active side of the french door as a guide, install a double-sided high-security lock. Half-deadbolts on one side should be installed at the top and bottom of each door.

Are double doors easier to break into?

Double French doors are particularly susceptible at the point where the two doors meet in the middle. When the doors come together, there is usually only a small overlap of molding. If the doors open into the room, this weak point makes it exceedingly easy to sneak in via the crack.

Do both doors open on double entry doors?

When necessary, the double entry allows you to open up the space to make a larger entrance. It is possible to acquire a door with one door fixed or locked so that only the primary active door opens and shuts, similar to a single door; the difference is that you have the option to operate both doors at any time.

How do you stop French doors swinging in the wind?

If you’re having trouble keeping your French doors closed and from blowing open, new hinges and locks are the solution. You could also consider having a professional replace the panes of glass in your windows with impact-resistant glass for further security. When you combine these factors, you can create a safer and happier home for the entire family.

How do French door handles work?

What Is the Function of French Door Handles? Due to the fact that they are double doors, French doors will not bolt to the door frame, but rather will bolt to one another.

As a result, they must be secured together, which is accomplished by the use of a strike-mounted plate. As a result, you will have two handles: one that is ‘active’ and one that is ‘dummy.’

How do double door locks work?

Double-cylinder locksets are keyed on both sides of the door, and they may be operated with a key that is used on both the outside and the inside of the door. This implies that even from the interior of a building, a homeowner or company owner would need to use a key to engage or retract the lock bolt. A single-cylinder lock is depicted in this figure.

How do double front doors lock?

There are normally two types of double doors when you install them: a passive door and an active door. This may be accomplished with the use of a bolt that is inserted at the top or bottom of the door, thus securing it shut. Because of the strength of the passive door, burglars will have a more difficult time kicking it open, and the passive door will also strengthen the active through door.

How do you keep French doors closed?

Many French doors have a fixed door that is held closed by a pair of barrel bolts that are sunk into the upper jamb and threshold of the doorway to keep it closed. Burglars may be able to work a screwdriver into the gap between the doors and unlock these bolts, even if they are sufficiently tight to prevent the fixed door from moving.

What is a French lock?

Hairstyle in which one lock of hair is worn longer than the rest and is fashioned such that it hangs forward over one shoulder.

How do I keep my patio door from swinging open?

A magnetic patio door stop is a device that may be installed on the floor or on the wall. It takes advantage of the magnetic force of a magnet to hold a door open. It’s a straightforward solution because it only necessitates one step in the use of this specific type of door stop. Also suitable for regular patio doors, this option is available.

How do you barricade a door that opens out?

Outward-opening doors provide a variety of options. If feasible, tie it around the handle of the bag and to a piece of heavy furniture. Barricading a door with cable and furniture is a common practice. Standing to the side of the door and holding on tight will work if there is nothing to attach it to or if the cord is too short to reach the door.

How do burglars break into French doors?

Lock snapping is a technique that is commonly used to gain entrance into a building. This is the stage in which the cylinder is shattered before the lock is manipulated open. This is an issue that occurs rather frequently with doors that have been installed with insufficient euro cylinders.

Are French doors a security risk?

So, are French doors a safe and secure option for you? Yes, they are, to answer your question. French doors are equipped with the same high-quality locking mechanisms found in normal doors, ensuring that they are just as safe and secure as standard doors. The most significant danger that these sorts of doors provide is when they are not fitted correctly.

How can I make my UPVC French door more secure?

Our top five recommendations for keeping your French Patio Doors safe and secure 1Be sure to lock your doors. 2Utilize a three-point locking mechanism at the very least. 3Adjust the hinges to ensure they are secure. 4 Increase the strength of the glazing. 5Install a grill on the inside.

How to Secure French Doors – Locksmith Recommended

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How to Secure French Doors from Burglars

French doors are one of the weakest security points in your home due to two individual doors meeting in the middle. Though they are not properly locked, or the locks given during the installation have not been adjusted, these doors may be made to simply swing open even when the deadbolt and door lever have been locked. As a locksmith company, we help people secure their french doors. These three methods offer the best security improvements for a french door. 1) Install a screw that prevents the unlocking of the passive door.

This is easy, affordable, and very effective. 2) Install security film to protect the glass from being broken out. 3) For optimal door security, install new locks that bind both sides of the door together so that they cannot be detached by swinging both sides open at the same time. Jump to:

  • Is it safe to use French doors? The most serious security flaw in a French door is
  • The Most Secure Method to Secure French Doors – It is both inexpensive and effective — If you don’t do anything else, at least do this
  • How to Prevent Glass from Breaking in Doors
  • French door locks with high levels of security
  • Kit for strengthening a French door and a double door

Quick Answers to Common French Door Security Questions

No. An important security weakness in French doors has to be fixed before they can be installed. No. There is a simple solution for the weakest spot that costs less than $1 to implement. From then, the cost might increase as you add more security, depending on the amount of security you require. Possibly. There are two approaches that may be taken to avoid this. By installing security window film, you can prevent the glass from being smashed. Alternatively, you may install a double deadbolt to ensure that even if one is damaged, the door cannot be unlocked.

Are French Door Safe?

French doors, also known as double doors, are made up of two doors that come together in the center. The passive door is the name given to one particular type of door. This is the door that gets the least amount of traffic. The other door is referred to as the active door since it is always open. This is the side of the door that is commonly opened and shut. French doors have the same security flaws as every other outside door in the house when it comes to locking mechanisms. We’ve published a guide on how to reinforce an entry door in six simple steps, which you can find here.

  1. A slide bolt or a flush bolt can be used to secure the passive door.
  2. Having addressed the specific double-door security issues discussed here, go to the preceding article to ensure that all of your doors are adequately reinforced.
  3. Because the passive side of the door is rarely utilized, it is securely fastened to the top and bottom of the door frame on both sides.
  4. The active door is then fastened in place by securing it to the protected passive side of the door with a deadbolt on the other side of the door.
  5. Because of this, if the passive side of the door is not securely fastened to the frame of the door, the two doors can be simply pushed open without any resistance.
  6. This is demonstrated in the photograph below.
  7. The Security Vulnerability of the French Door

The Biggest Security Flaw of French Doors

The flush bolt can be unlocked using a screwdriver. As long as the passive door is securely attached to the door’s frame, there should be no issues with it. The passive side of the door, on the other hand, may be readily unlocked. Numerous YouTube videos are available that demonstrate a number of strategies for unlocking a double door. To get around the door locks, all you actually need is a small screwdriver, a drywall hammer, or even a strong coat hanger. It is possible to latch the flush bolt with any thin, rigid object that is placed into the seam between two doors and then move it to the unlocked position by inserting it into the seam.

Important: Using the approach described above, you may open your guarded french door in a matter of seconds while leaving no obvious indications of a forced entrance.

OurTempe Locksmithservice sees a lot of these as well, owing to the fact that it is a college town with a large number of condominiums that have them. Shop Power Tools from Home Depot

How to Secure French Doors – Quick and Easy Solution

We’ll go through a couple of different methods for securing your french door, but this is the most straightforward, least expensive, and most straightforward. It will not solve any other security weaknesses of the double door (such as the glass), but it will prevent someone from entering into your french doors unnoticed, which is exactly what we were talking about before. A single screw is all it takes to prevent this bypass from occurring. Screw the screw into the flush bolt. The passive side of the door is only utilized on a very seldom basis.

  • That so, we propose installing screws into each flush bolt so that they cannot be slid out until the screws are removed.
  • Simply slip the flush bolt into the door frame, which will lock the door in place.
  • If you find yourself in need of this door at any time, just remove the screws and replace them when you are no longer in need of that side of the door.
  • But what if you want a higher level of protection?

Glass Door Security Window Film

At Home Depot, you may get security window film. Glass security window film has gone a long way since its introduction. The installation of glass security film is now a simple DIY project that can be completed by the majority of homeowners. The security film will significantly improve the security of a french door by preventing the glass from being easily damaged in order to unlock the door. Security window film is a thin sheet of film that is applied to the window glass. This film is several millimeters thick, but it is transparent, so the beauty of the door is not detracted from by its presence.

The glass does crack, but the film holds it together until it can be repaired or replaced.

See also:  How Much To Install Interior Door

When this is not possible, we apply a thin bead of transparent silicone around the border of the window.

High Security French Door Locks

We frequently raise the protection of the french door to the maximum level feasible when I have customers who have substantial assets in their homes and french doors, which we have done in many cases. In order to do this, we will:

  1. Install a commercial quality double sided lock on the active side of the door, or alternatively, install a commercial grade single sided deadbolt. Into the active side of the french door, install a double-sided, high-security lock. Half-deadbolts on one side should be installed at the top and bottom of each door.

The Mul-t-Lock Ball Bearing joins the Latch and the Strike together to prevent them from being disengaged. When it comes to high-security locks, Mul-t-lock is the brand we recommend. It’s covered in detail in our web article, Best Lock Brands. The Mul-t-lock includes a function that is particularly useful for double doors in this situation. Mul-t-lock locks have a ball bearing in the bolt that secures and locks into the strike of the other door when used in conjunction with another lock. As a result, it is quite difficult to separate the two doors!

  1. Consider purchasing a twin cylinder deadbolt that accepts keys on both sides.
  2. For increased protection, even if you are not spending the extra money on a Mult-lock high security lock for your french door, you should consider upgrading the lock to a commercial grade double cylinder deadbolt.
  3. If you get one from Amazon, just bring it to your local locksmith so that they can program it to work with your existing home key before you install it.
  4. To find out what your alternatives are, simply phone your local locksmith, and they will be happy to assist you with your situation.
  5. The removal of the flush bolt provides an additional significant increase in security for french doors.
  6. A thumb turn is provided on the inside of the home, however there is no indication (no keyhole) on the outside of the home for this lock.
  7. Both double doors have these installed at the top and bottom of the door jambs.
  8. Using the passive door will also eliminate the necessity to remove screws in order to get entry; you just unlock the deadbolt with your thumb turn instead.
  9. However, in order to install them, you will need to drill holes into both your doors for the deadbolts and into the door frame in order to prepare for the latch.
  10. As a result, we recommend that you contact a locksmith in your neighborhood.

French Door, Double Door Reinforcement Kit

This post began with a brief mention to the article How to Reinforce an Entry Door in 6 Simple Steps, which can be found here. All of the same security precautions that apply to any entrance door also apply to the security of your french door. There is one significant alteration, and that is the addition of the door reinforcing kit. The door reinforcing kit is discussed in detail in that article (watch me install a door reinforcement kit on our YouTube video). French Door Armor is a type of protection for French doors.

The books were no longer available for purchase on Amazon at the time of this writing.

The kits include everything you need to reinforce the jamb, the door edge, and the hinges, as well as instructions. They also come with 3′′ screws, which means you won’t have to worry about securing your french door with those small 1/2′′ screws anymore.

How to Secure Double Doors Summary

A single screw may be used to secure your double french doors and protect them against the simplest bypass approach, which can be accomplished for virtually nothing. However, if you have a lot of valuables and want to keep the french door as safe as possible, there are a variety of additional things you can do to increase the integrity of the door and bring it up to the maximum degree of protection. Which one you pick will be determined by your desired level of protection as well as your budget.

  1. Smart Locks: You can unlock your doors with your smartphone.
  2. Before reading our reviews of the most popular Smart Locks, have a look at our Smart Lock Comparison Video on YouTube.
  3. Sliding Glass Door Lock: The finest arcadia door lock that prevents your sliding glass door from being pulled off of its tracks and prevents children from opening the door and fleeing the house is the Sliding Glass Door Lock.
  4. Padlocks: It is not all padlocks that are equivalent in quality.
  5. On Amazon, you can find some of our favorite padlocks.

How To Secure A French Door –

Front entry French doors and sliding glass patio doors are two of the most challenging types of outdoor doors to lock. And it’s not difficult to see why – on French doors, the weak spot is the joint where the two doors meet, but on sliding glass doors, the weak point is the common hook type lock that the manufacturers supply. Sliding glass doors can be difficult to secure, as I have mentioned. Here are some suggestions for how to keep a French door safe. There is also a brief history of French doors, including where the term “French door” originated.

How secure are French doors?

The use of French doors can be advantageous, but they are not particularly safe when only a lock is used to protect them. Your French door is most likely equipped with merely a locking lever and a deadbolt. The fact that both doors have hinges means that there is nothing strong or immovable for the lock to latch into, even if it is a grade one deadbolt.

The Best Products to secure a French door:

  1. A double door reinforcement kit from Armor Concepts, a Nightlock door barricade, a single-sided deadbolt, a straight handle lock, flush bolts, glass protection, and a Cremone Bolt are all included.

Armor Concepts Double Door Kit

For both single and double doors, Armor Concepts manufactures a large number of door armor or reinforcing kits. For double doors and French doors, they have a kit similar to this one. Apart from the flush or surface bolt, it contains everything you’ll need to secure the door to your home. In most cases, the French doors that are installed by house builders already have flush bolts included in the package. If such is the situation with your French door, this kit will get you up and running in no time.

Despite the fact that Nightlock is manufactured by a separate business, Armor Concepts includes it in this kit, which is sent separately from the reinforcements.

It comprises 2.5-inch screws for the lock and strike reinforcements, as well as 3-inch screws for the hinge reinforcements, among other things.

The installation of these reinforcements does not need a high level of competence. They are intended to be installed over the existing hinges. It is possible that just the latch and strike plates will need to be removed.


Despite the fact that Nightlock is manufactured by a separate business, Armor Concepts includes it in this kit, which is sent separately from the reinforcements. There are two pieces to the Nightlock; the first is a base that is screwed into the floor, and the second is a plate that slips into the base. The plate can be removed at any moment without causing damage. If you intend to use this on your front door, you will need to wait until everyone has returned home for the evening before putting it into operation.

It may even be used on single doors if necessary.

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The Single Sided Deadbolt

A single sided deadbolt is the most secure choice for securing a French door, and it is the most common type of lock. Because French doors lack a center frame or support, they are extremely flimsy and brittle in the middle. If you want to secure both doors, a deadbolt that locks both doors together, as well as single-sided deadbolts at the top and bottom of both doors, is a smart combination to use. Unlike a traditional deadbolt, a single-sided or one-sided deadbolt is a deadbolt lock that has only a thumbturn on the inside and nothing on the exterior.

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Most likely, your French doors do not have the necessary cutouts for this lock, and the door will need to be modified in order to accommodate this device.

I would still urge that you use a professional to ensure that this is done appropriately.

The Straight Handle Lock

If both doors have a straight handle, this is a lock that is simple to install and may be used. Installing it is as simple as fitting it over each straight handle and snapping them together. It stops the handles from being turned and the latch from being disengaged, preventing the latch from being disengaged. Even if the cylinder is picked, banged, or snapped, the handle will remain immobile and will not be able to turn. Furthermore, by keeping both doors together, it serves as another further deterrent against a forced entry.

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Flush bolt

A manual flush bolt is one that requires the lever to be flipped in order to lock or release the inactive leaf, which is not automatic. You’ll need two flush bolts: one for the top of the door and another for the bottom of the door. There are alternative manual flush bolts that may be found here or here that will work just as well as the ones described above. The flush bolt seen above, on the other hand, is made by Ives. Furthermore, architects frequently specify this particular flush bolt for usage in commercial structures.

Furthermore, it will operate in residential settings as long as your door is 1 3/4′′ thick or less in thickness.

The installation of a flush bolt on a door may be best left to experts unless your door has already been drilled and notched for one.

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Protect the glass

French doors have a lot of glass on their surface, which is why they are so popular. It is necessary to either reinforce or replace the glass. The quickest and most straightforward remedy is to apply a window coating to the glass, which enhances its strength. The coating allows the glass in your French door to function in a similar way to windshield glass. The glass will shatter, but it will remain unbroken, making it extremely difficult for an intruder to get through. The window film is available in rolls that are 30 inches wide.

  • The most recent change was on 2021-05-05.
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  • It will accomplish the same results as window film, with the added benefit of being less messy for you.
  • It will take a significant amount of force to break through this glass, which was designed for hurricane-prone locations.

Cremone Bolt

In the event that notching or cutting into the door in order to install a flush bolt is something you do not want to do, you can consider using a cremone bolt instead. Double or French doors can be secured with an acremone bolt, which is a surface-applied lock. Unlike a traditional door lock, which has a locking mechanism at the mid-point of the door, this one does not have one. It is necessary to insert the top bolt into the header before inserting the bottom bolt. With a turn of the handle, both the top and bottom bolts retract, allowing the door to be opened.

Their ornamental locks and handles are quite popular, and they create a large number of them.

The most recent change was on 2021-05-05.

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Multipoint Lock

As the name implies, this is a mechanism that allows the door to be locked from a variety of positions. When the handle is twisted, a rod slips into the header and into the floor, just like the Cremone bolt does. However, it also locks into the opposite door at the halfway point. It is locked at three places, however there are others that are locked at five spots. However, in order to use this lock to secure your French door, the door must be cut out in order for the lock to fit. The multipoint lock rods, in contrast to the Cremone bolt, are located within the door.

My Recommendation

It is your goal, while thinking about how to lock a French door, for the opportunistic thief to leave your home and go on to the next one. When it comes to protecting your family, house, and belongings from invaders, the idea is to make it so tough that it is not worth the time and bother for them to get in.

A single sided lock installed at the top and bottom of both doors, along with the window film and the jamb reinforcement armor kit, will make it extremely difficult for an intruder to gain entry through an inward or outward swinging French door, if done correctly.

What is a french door?

French doors are often a pair of doors with glass panes that cover the majority of the door surface, with the exception of the margins of the door, in most cases. In order to accommodate hinges, locks, and weatherstripping, the corners of these doors are similar to those of a regular door. Because French doors are a pair of doors, one leaf is usually utilized as the primary egress door because they are a pair of doors. The other leaf is normally kept shut until you wish to allow ventilation and light to pass through, or unless you’re hosting a party and need a large aperture to accommodate more people.

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These are sometimes found on a front entry without windows, although they are more frequently recognized as an opening to a patio or backyard, depending on where you live.

Aside from outside apertures, French doors have also been utilized for internal openings such as those leading to an office or a master bedroom.

And why are they called french doors?

As you might have suspected, the name “French doors” originates from France, although it was given to them by the Italians. When the Renaissance era flourished in Italy throughout the 1400s and 1500s, it was due to the ideas about perspective and architecture that were developed. Because of their involvement in the Italian Wars of the 1500s, French and Italian armies were exposed to these new Renaissance values, which they carried back to France when they returned from their service in the war.

How to Lock Double Doors

You have the option of installing a lock on your French doors. Photograph courtesy of phototropic/iStock/Getty Images A pair of double doors, which are referred to as French doors if they include glass, is made up of two door leaves that are fitted in a single frame. With a knob or lever, one leaf can be opened and closed while the other is deemed inactive. It is assumed that the other leaf is idle, and it remains locked for the most of the time. Despite the fact that these units may be secured with the majority of ordinary locksets, they must also be provided with flush bolts in order to keep the inactive leaf in position.

Step 1: Choose the Active Leaf

Determine which leaf is active and which is passive by looking at the leaves. When looking over your blueprints, look to see whether the active leaf is marked in any way. If this is not the case, the leaf that is now active is usually the one that is most handy to open. When selecting the active leaf, keep in mind the direction in which traffic is traveling as well as the positions of neighboring furnishings.

Step 2: Pick a Lock

Select a lockset from the drop-down menu. It is possible to use any mortise or cylindrical lock on a pair of doors in the same way that it would be used on a single door.

Check to see that the lock you chose will fit into any existing holes in the door, if any have been drilled before. In addition, the lock should be constructed to match the thickness of your door, which will typically range from 1 3/8 inch to 1 3/4 inch on average.

Step 3: Cut the First Hole

After removing the lock off the packaging, check inside for a paper template. This template will be attached on the active leaf and will serve as a guide for where the lock will be placed. Cut or drill holes into the active leaf in the locations specified on the template. At this moment, there should be no holes made in the inactive leaf.

Step 4: Install the Lockset

Installation of your lockset in the active leaf should be done according to the instructions provided on the lock template. Increase the number of cylinders or reduce their size as stated.

Step 5: Cut the Strike Hole

To prepare the inactive leaf, use the strike template that comes with your lock as a guide. This template, which should be wrapped around the edge of the dormant leaf and will show where holes should be drilled, should be used to guide the drilling process. You will need to use a hammer and anvil to carve a pocket for the latch bolt if the door is blank to ensure that it will fit. After the door has been prepared, attach the lock strike plate to it using the screws that were included.

Step 6: Install Flush Bolts

Purchase flush bolts for your door’s top and bottom halves. Surface-mounted flush bolts will be the most straightforward to install for inexperienced technicians. The bolts should be screwed into place on the inactive leaf’s face using the template that comes with them.

Step 7: Mark Where Bolts Hit

Lipstick is applied to the end of each flush bolt, which should be extended so that it contacts both the floor (at its lowest point) and the door frame (at the top). It will be necessary to cut the strike for each bolt based on the location of this lipstick mark.

Step 8: Install Top Strike

Make a hole in the door frame with a hole saw or a hammer and chisel, depending on your preference. Once the hole has been cut, the striking plate should be placed over it. The screws that come with this plate should be used to secure it in place.

Step 9: Install Bottom Strike

Install the bottom strike in the same manner as you did the top striking. Depending on how long the bolts are, you may need to elevate the strike plate with wooden shims if they aren’t long enough to reach the strike plate at the bottom. Check the bolts to see whether they are tight enough.

Step 10: Leave Flush Bolts Locked

Ensure that the flush bolts are always securely secured. When there is a temporary requirement for a larger door opening, such as when moving huge equipment through the doors, unlock them and keep them locked. This is accomplished by using a lockset on the active leaf and flush bolts on the inactive leaf to maintain security on both.

How To Choose The Best French Door Handle Sets For Your Home — TruBuild Construction

Making the proper choice for your french door knobs may be a difficult undertaking. It is more difficult to place door knobs on french doors because of their layout, which is especially true if you require them to lock. When attempting to select the most appropriate french door handle set configuration and lock, it is important to examine the purpose of the doors as well as how the area will be utilized. Disclosure of Affiliate Relationships: Because I am an Amazon Associate, I receive money when people make eligible purchases.

Here are a few illustrations: When it comes to french doors between two sitting rooms or on a closet, attractive knobs for the doors may be all that is required.

To retain privacy while leaving an office space with french doors, you might want the ability to lock the door with a key before walking out the door.

You already know that when it comes to outside french doors, you’ll want to make sure that the handle set has a strong lock that will keep your property safe from attackers.

Do French Doors Have Handles On Both Sides?

A succinct response would be that it depends. A fake handle is a handle on a french door that does not move and is solely for cosmetic purposes. Dummy handles are common on french doors. The reason for this is because not all french door designs will absolutely require handles on both sides of the door. That being said, unless the door will be stationary, or will not move at all from its current position, it may be preferable to have a decorative handle on both the right and left hand sides to hold onto when opening and closing the door in order to avoid having to directly touch the door when opening and closing.

How Does French Door Hardware Work?

The operation of french door handles may be a mystery to you, and we are here to assist you unravel the secret. French doors are available in a variety of layouts, each of which is determined by their intended use. In general, internal french doors are designed such that either side of the door may be opened without affecting the operation of the other side. Using this design for closet doors or in other circumstances where you do not intend to attach locking hardware is a typical practice. The top of each of your inside french doors will most likely have a hole in it if you purchase them from a store.

The plate is put on the top of the door jamb, and the ball is inserted into the hole in the top of the door jamb to complete the installation.

You’ll need to determine if you want the doors to be able to be locked before you can begin the process of picking the knobs for your inside french doors.

  • When it comes to handles, you will have a choice between fixed and rotating handles if they are not going to lock. In the event that they are going to be secured, you’ll need to select whether you will use a manual lock on the inside (such as a button or other manual lock) or if you will use a keyed handle set that can be locked from both the inside and the outside.

First and foremost, if you want to install a lock on your inside french doors, you must determine which handing you like for your door. To determine whether your door should be opened from the right or left side, consider the following:

  • Keep your feet on the side of the door where you can see the hinges – the doors will be swinging in your direction. The handling will be determined by which door you wish to open first, whether it is the right or left door.

You’ll need to place a T-shaped trim piece known as astragal moulding on the external side of the opposite door, which will be the one that will be “fixed” once you’ve decided on the handing. This piece of trim serves the function of providing you with seclusion by filling in the area between the two doors. The lock also serves to offer security by preventing individuals from gaining access to it through the gap between the doors. This trim is added to the outside of outside french doors in order to offer adequate security.

Interior French Door Fixed Handle Sets

If you intend to use your handle only for ornamental purposes, with the function of pushing and pulling being limited, you will want to get fake handles for the doors.

For a door that will be accessible from both sides, you will need to acquire two sets of two handles, for a total of four handles. Always keep in mind that when choosing a lever design, you’ll want to be sure to have handles for both the right and left hands.

Interior French Door Locking Privacy Handle Sets

You may order two sets of privacy handles for your internal french doors: one set of fake handles and one set of operational privacy handles to complete the installation (handles that are able to turn). The mock handles will be installed on the inside and outside of the door that is opposite the one that you choose for your handing, the one with the astragal trim connected to the outside, on both the inside and outside. The operable privacy handle set will be fitted on the door that you have selected for your handling procedure.

If you go for lever door handles, be sure to pay close attention to the handling of the handles.

Interior French Door Locking Keyed Handle Sets

To place keyed handles on your interior french doors, you will need to purchase two sets of fake handles and one set of keyed handles, similar to what you would do with privacy handles above. The mock handles will be installed on the inside and outside of the door that is opposite the one that you choose for your handing, the one with the astragal trim connected to the outside, on both the inside and outside. The keyed handle set will be fitted on the door that you have selected for your handover.

If you go for lever door handles, be sure to pay close attention to the handling of the handles.

Interior French Door Bolt Locks

When it comes to more secure locks for your internal french doors, you may choose from a variety of different styles, including bolt style locks. They are mounted on the door and are designed to lock up into the door jam, down into the floor, or a combination of both. They can be used in conjunction with the locking handle choices listed above, or they can be used alone.

Exterior French Door Handle Sets

As previously stated, outdoor french doors must be purchased with the proper handing in order to function properly. This is due to the fact that they come with heavy strength astragal trim connected to the secondary door – the door on the opposite side of the house from the primary entrance – to provide additional protection. Exterior french doors, in contrast to internal french doors, normally have only one handle set, which is put on the principal door, or the door with the handing of your choice, in most cases.


If you’re looking for a new set of handles for your interior or external french doors, I hope this information has been useful in your quest for the appropriate set for your interior or outdoor french doors. Always consider the purpose of the area before deciding whether or not you want (or need) the doors to be able to be locked. From there, you’ll be able to choose from a variety of setups and locking choices to find the one that best suits your requirements.

Are you looking for a handle set for interior or exterior french doors? If so, I’d like to hear from you. Do you have any queries concerning french door handle sets that weren’t answered here? Please let us know. Fill out the form below to ask me a question!

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