how to install a locking system for french door

locking system for french door
Tools Needed
1 Deadbolt
2 Masking Tape
3 Pencil
4 Spade Drill
5 Electric Drill
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Materials Needed
1 Screwdriver
2 Hole saw
3 Wood chisel
Total Cost
$25-$50
Find a handyman
Estimated Time
1-2 Hours
Skill Level: Advanced
The total cost and duration may vary when hiring a handyman!

Project Overview

lock for a french door

Sophistication, style, and ambiance are all characteristics given to your home after French doors are installed. Some French doors are pre-set with a lockset, however, if the door you’ve purchased is without one, it is up to you to add a lock. French doors are beautiful, but they’re not very secure, particularly without a lock. Luckily, a lock is an easy addition to a French door. After install, enhanced beauty and intrigue are enjoyed inside the home, as well as the added security and protection needed for comfort and peace of mind when you’re home and when you’re away.

Several types of locks can be easily added to a French door, but the deadbolt is the most popular of the options. Learning more about the different type of locks to determine which is best suited for your door is the first step in gaining these amazing attributes. With the information in tow that you’ve learned, choosing the best lock for your needs is simple.

No professional is needed to install locks on your French doors. Once you know the type of lock you want to install, use the step-by-step instructions below to learn how to install a locking system for a French door in about half-day.

Step-By-Step Instructions

1

Purchase a New Lockset

new french door locks

Set your lockset budget before traveling to the home improvement store. Knowing the amount of money you can spend on a product before arrival lessens the hassle of shopping and minimizing the time you’ll spend inside the store selecting your new lockset. Visit your local home improvement store to purchase a new lockset for the door. Many types of locks and locksets are available to install on your French doors. Talk to the home improvement specialist about each type of deadbolt lock, but do plenty of research concerning the lock types before the date of purchase.

Locksets are sold in prices low and high, each offering something different than the next product. With the help of an associate, you can determine which lockset is best suited for your needs. Remember, a high-quality, durable lock purchase is important to keep your French doors secure! Choosing a lock utilizing a three-point locking mechanism provides the best security possible for this door style. Should you wish to permanently shut the door, it’s possible with a deadbolt that has a sliding lock on both the top and the bottom of the door. To permanently secure the door, causing difficulty forcing the door open, drill a hole into the locking mechanism and use a wood screw to cease the door from opening.

2

Drill The Hole

french door locking system

A template is included with the deadbolt lockset package that you buy. This template provides exact installation instructions for that particular lock. Use tape to secure the template onto the door for easy reference. The template has many holes in it that indicate where parts of the deadbolt should be attached. The largest hole on the template is the location of the main body of the lock. The doorknob or the door handle is placed here. A large pivot hole is necessary to secure the door knob or the handle.

Use your drill to create this hole. Ensure the pivot hole that you drill extends through the thickness of the door material. After you’ve made the pivot hole, it’s time to finish making the hole for the doorknob! Use your hole saw to drill this hole. It should extend about halfway through the door. Moving to the opposite side of the day, repeat the process. When you drill the holes in this manner, wood splintering risks are reduced.

3

Install The Latch

French door locks

Using the template provided with your deadbolt, drill a latch hole in the door with a spade drill. There’s a few more screws to drill to set the door lock. A screwdriver or drill will secure the screws on the door edge and those on the door face. How long are the screws on the hinges of your French doors? If these screws aren’t three-inches long, consider updating them now to enhance security, since this screw length secures the doors to the doorframe. Also ensure there’s a one-inch throw on the deadbolt to make it more difficult for intruders to force entry into your home.

The deadbolt should now be placed into the latch hole. Use your pencil to trace an outline of the latch plate on the edge of the door. A mortise for the latch plate is also needed. Use screws to attach the plate into the mortise. If you’re unsure how to cut a mortise on a door, simple screw the hinge to the door jamb, score an outline with a utility knife and again remove the hinge. Place the chisel on the score you created, bevel side facing the mortise. Then, lightly tap the chisel using a hammer to create a deeper scored line. Make cuts ⅛-inch apart with the chisel. Lay the chisel flat and use to clean out the waste from the new mortise cut. When finished, the mortise should be the same depth as the hinges.

4

Install The Lock Body

locking systems for french doors

Use the template and instructions included with the lock to set the lock body. Installing locks varies considerably, depending upon the type and brand of locket you purchase. Most deadbolts require assembly by simply attaching the inner and outer cylinders together with screws. Before tightening, ensure the lock and key are working properly. If you’re adding a lock to a metal or fiberglass door, use a carbide-tip drill to create holes in the material.

Position the deadbolt so that it aligns with the adjoining door edge of the stationary door. Close the door one-fourth of the way; marking the position. Mark a score around the strike plate with your utility knife. Create a mortise with the chisel, placing the strike plate inside. Mark the hole for the deadbolt and drill the hole into the stationary door. If the hole is not the same length as the deadbolt, adjustments should be made. When the hole and deadbolt are the same length, screw the screw plate into the mortise.

Conclusion

With a lock installed on your French doors, home security is now improved considerably and peace of mind and comfort are two qualities you’ll enjoy when you’re home enjoying time with those that you love, and when you’re away at work or elsewhere. To further protect your home from intruders, a security bar can easily be added to the French doors. A security bar reaches from the door to the floor, preventing it from opening. There are some security bars with alarms included.

How To Install A Locking System For French Door

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  1. ArmabyTek Series Rustic Double wood French Door in a white Color Measuring 59 in. by 96 in. with Single Bore Prepview
    ArmabyTek Series Rustic Double wood French Door in a white Color Measuring 59 in. by 96 in. with Single Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
  2. ArmabyTek Series Traditional Single wood French Door in a Cherry Color Measuring 60 in. by 80 in. with Double Bore Prepview
    ArmabyTek Series Traditional Single wood French Door in a Cherry Color Measuring 60 in. by 80 in. with Double Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
  3. ArmabyTek Series Rustic Double wood French Door in a Fir Color Measuring 71 in. by 80 in. with any Bore Prepview
    ArmabyTek Series Rustic Double wood French Door in a Fir Color Measuring 71 in. by 80 in. with any Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
  4. ArmabyTek Series Modern Double Composite French Door in a Cedar Color Measuring 72 in. by 80 in. with Double Bore Prepview
    ArmabyTek Series Modern Double Composite French Door in a Cedar Color Measuring 72 in. by 80 in. with Double Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
  5. ArmabyTek Series Traditional Double wood French Door in a Oak Color Measuring 71 in. by 80 in. with Single Bore Prepview
    ArmabyTek Series Traditional Double wood French Door in a Oak Color Measuring 71 in. by 80 in. with Single Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
  6. ArmabyTek Series Contemporary Double wood French Door in a Cherry Color Measuring 72 in. by 80 in. with Double Bore Prepview
    ArmabyTek Series Contemporary Double wood French Door in a Cherry Color Measuring 72 in. by 80 in. with Double Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
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  8. ArmabyTek Series Modern Double wood French Door in a Mahogany Color Measuring 59 in. by 80 in. with any Bore Prepview
    ArmabyTek Series Modern Double wood French Door in a Mahogany Color Measuring 59 in. by 80 in. with any Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
  9. ArmabyTek Series Modern Double Composite French Door in a Oak Color Measuring 60 in. by 80 in. with any Bore Prepview
    ArmabyTek Series Modern Double Composite French Door in a Oak Color Measuring 60 in. by 80 in. with any Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
  10. ArmabyTek Series Rustic Double Composite French Door in a Cedar Color Measuring 71 in. by 80 in. with Single Bore Prepview
    ArmabyTek Series Rustic Double Composite French Door in a Cedar Color Measuring 71 in. by 80 in. with Single Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
  11. ArmabyTek Series Modern Double Composite French Door in a Cherry Color Measuring 71 in. by 96 in. with Double Bore Prepview
    ArmabyTek Series Modern Double Composite French Door in a Cherry Color Measuring 71 in. by 96 in. with Double Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
  12. ArmabyTek Series Rustic Double Composite French Door in a Mahogany Color Measuring 72 in. by 80 in. with any Bore Prepview
    ArmabyTek Series Rustic Double Composite French Door in a Mahogany Color Measuring 72 in. by 80 in. with any Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
  13. ArmabyTek Series Classic Double Composite French Door in a Cedar Color Measuring 72 in. by 80 in. with Single Bore Prepview
    ArmabyTek Series Classic Double Composite French Door in a Cedar Color Measuring 72 in. by 80 in. with Single Bore Prep
    FocusPoint Systems French Door is a hinged, inswinging patio door with the highest-quality materials and strong tempered glass. A variety of designs are available to match the layout of your home and patio, including art glass options, exterior frame colors, and interior hardware finishes like stone, brass, or oak. All wood panels are coated with high-durability finishes, ensuring you a maintenance-free, permanent addition to your home.This door is not only beautiful, it will increase the energy efficiency of your home with energy star-rated construction and weatherstripping for a seal that will help control both heating and cooling costs. The gorgeous frame has a wood core and fiberglass exterior for maximum durability and aesthetic appeal. Hinged inswing double-pane glass door with adjustable hardware fits any standard opening, and customization is available in 1/8” increments.
    Estimated Price: $299.00+
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Questions And Answers

How do I install locks on interior French doors?

Installation of the locking system depends on which system you choose. French doors by nature are not completely safe because they have windows in them. In theory the windows could be smashed and provide access by trespassers. If the lock is simply to keep the dog from pushing through, or to deter curious minds from searching your private spots a latch bolt could do the trick. Installation of latch bolts require a drill, a screw driver, a level and a measuring stick.

What is the best locking system for French doors?

The best locking system for French doors depends on where your doors are located and what type of security you’re looking for from the lock. Security ranges from electronic alarm systems to simple slide blots depending on the location of the door and the level of security needed. Interior French doors usually do not need as much security as exterior doors. If interior doors do need a very high level of security then French doors probably aren’t the way to go due to the glass naturally compromising the strength of the system.

Could a deadbolt be used on French doors?

Depending on the solid wood space available in the interior French door, installing a deadbolt lock could be the solution for relatively high security. A deadbolt would enable the doors to be unlocked with a key, just as the primary entry doors to the house are locked. The problem to look out for is the thickness of the French door paneling beside the glass inserts, and the wide of those panels – which needs to remain sturdy when the hole is drilled to accommodate the insert of the deadbolt when locked.

How do I install an alarm system on French doors?

Unless you are an electrician it is recommended that you hire a professional to install an alarm system on your French doors. If they are exterior doors, to a patio for example, the installation would be done with your home security company as part of their package. If it’s an interior set of French doors that was not included in your home’s security system package that company may provide this installation – but it’s worth comparing prices with individual contractors as well.

How difficult is it to install a security system on my French doors?

Installation of a security system should be done by professionals. If you are an electrician or are a very experienced do it yourself installer you could do the job yourself. It requires some minor construction know-how, knowledge of circuitry and running of wires appropriately to meet code, and sensibility regarding aesthetics. If security is of high importance to you, have a professional do it and be sure that your insurance company recognizes the way it has been installed as a proper aspect of your coverage.

Are typical flush bolts found on French doors tamper-proof?

Flush bolts are used when one side of the French doors is locked in place and the other door is the one that swings open. Flush bolts are not tamper-proof. The bolts can be slid upward and downward easily by a burglar with a clawed hammer. To make flush bolts tamper-proof install a screw into the door below or above the flush bolt to keep it from sliding. This will forever prevent that door from being opened without first removing the screw.

Is it necessary to install a lock system on French doors?

It is not necessary to install a locking system on French doors, but without one finger prints will inevitably show up on the lovely glass inserts. A simple door knob properly installed can create enough connection to prevent the doors from swinging open without the need to install a locking system. That said, with both sides of a French door being able to swing open, over time the whole door system may settle and lose proper connection. In that case an additional locking feature could keep the doors stationary.

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INTERESTING RESOURCES

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External French Doors

External French doors add a touch of elegance to the entryway that other door styles fail to provide. There are hundreds of ideas to personalize the door, ensuring your home is intriguing, unique, and most importantly, creates a personal impression exciting enough to turn heads. Elegant finishes, hardware additions, side glass, and other options are among the ways to capture the true ambiance of your new door. The French-style door is not only the perfect entryway door, but perfect for patios, too. While you may have seen double entryway doors such as the French doors one of which generally locks into place, they will often have one working door handleset and one that is just there for looks so that symmetry continues. The same is available for the patio setting of French doors where they are most commonly used in tandem to open both sides and seemingly bring the outside indoors. read more

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French Doors Materials

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double wooden french doors

Wooden French Doors

Wooden French Doors are often described as elegant, and when it comes to practicality, the design is no exception because of its dual-function. Their design also features a unique glass to frame ratio that is suitable for many kinds of interior and exterior settings. They allow natural light to come in and give the room a pleasant aesthetic. Moreover, installing wooden French doors would be a stylish addition to your home, and make it easier to move furniture in and out of the home. They can change the way you feel around the house and improve your mood because walking through beautiful doors such as these impact the overall style of your home. An addition of screens allows air ventilation between different parts of the house without worrying about insects flying in and also gives more privacy to the residents of the home if the doors are installed on the exterior of your home. The antique design of wooden French doors is a distinct presence, which adds character to modern architecture and makes it look even better. If your home already features traditional styles, opting for wooden French doors provides you with many colors other than white and gives a modern touch to its otherwise vintage personality. read more

Increases Accessibility and Easier to Use

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Save Money and Add Value

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Different Uses and Attractive Design

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Sliding French Doors

Sliding French Doors

Sliding French doors reflect the style of traditional French doors with the convenience of a slider. The design is ideal for small homes as they take less room to operate and won’t intrude into your interior or outdoor spaces. Generally, sliding French doors feature two sections, each with a large pane of glass as part of the construction. One or both of the door sections will slide along a track, allowing you to open and close the door with ease. Typically, just one of the panes functions as a door while the other is locked in place, though some do offer the ability to slide either door open, giving you a bit of additional flexibility. read more

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