Can You Put a Deadbolt on French Doors?

French doors are known for their elegance and charm, but security can sometimes be a concern. If you’re wondering, “Can you put a deadbolt on French doors?” – the answer is yes! 

In this guide, we’ll walk you through the process of adding a deadbolt to your French doors, ensuring both beauty and security are maintained.

Can You Put a Deadbolt on French Doors?

Yes, you can put a deadbolt on French doors. Deadbolts are an effective way to reinforce security and provide an extra layer of protection against potential break-ins. 

By installing a deadbolt, you can achieve peace of mind without sacrificing the visual appeal of your French doors.

French doors provide an excellent source of natural light and a seamless connection to the outdoors, making them a popular choice for homeowners. 

However, their unique design can pose challenges when it comes to security. Adding a deadbolt is a practical solution that enhances your home’s safety without compromising its aesthetic appeal.

Materials You’ll Need

Before you begin, gather the following materials:

  • Deadbolt kit
  • Drill
  • Screwdriver
  • Measuring tape
  • Pencil
  • Door Jamb reinforcer (optional but recommended for added security)

Step-by-Step Guide to Put a Deadbolt on French Doors

Follow these steps to install a deadbolt on your French doors:

1. Choose the Deadbolt Location

Decide where you want to install the deadbolt. Typically, it’s positioned above the existing handle lock, about 6 inches from the top of the door.

2. Mark the Position

Use a pencil to mark the location of the deadbolt on both the door and the door frame.

3. Prepare the Door

Drill a hole through the marked spot on the door. Make sure the hole is straight and doesn’t go all the way through the other side.

4. Install the Deadbolt Mechanism

Insert the deadbolt mechanism into the hole and secure it with screws. Follow the manufacturer’s instructions carefully.

Install the Strike Plate

Attach the strike plate to the door frame at the corresponding height. This is where the deadbolt will slide into when the door is closed and locked.

Test the Deadbolt

Check if the deadbolt smoothly extends and retracts. Make any necessary adjustments to ensure proper functionality.

Factors to Consider Before Putting Deadbolt on French Doors

When adding a deadbolt to your French door, there are several factors to keep in mind to ensure a successful installation and optimal security:

1. Door Material

French doors can be made of various materials, such as wood, fiberglass, or steel. The installation process may vary depending on the door’s composition.

2. Door Thickness

Measure the thickness of your door to ensure you choose a deadbolt that fits correctly.

3. Lock Grade

Select a deadbolt with a high security grade to maximize protection.

4. Aesthetic Concerns

Choose a deadbolt that complements the design of your French door, maintaining their aesthetic appeal.


Adding a deadbolt to your French doors is a practical way to enhance security without compromising their elegance. With the right tools, materials, and careful installation, you can enjoy the benefits of both style and safety. 

Remember to consider your door’s material, thickness, and aesthetic preferences before selecting a deadbolt. 

By following our step-by-step guide and taking advantage of available security options, you’ll ensure your French doors are a secure and stylish feature of your home.


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