I Tested the Best Locks for French Doors: What Really Works for Security and Style

AvatarByAlvin Rath

When it comes to enhancing both the beauty and security of my home, I’ve always found that the little details make a big difference. French doors, with their elegant glass panes and timeless charm, add a touch of sophistication to any space. But as much as I love their aesthetic appeal, I quickly realized that choosing the right locks for French doors is essential to keep my home safe without compromising style. Whether you’re looking to boost security, improve functionality, or simply find a lock that complements your door’s design, understanding the options available can make all the difference. Let me share what I’ve learned about securing these beautiful doors effectively and effortlessly.

I Tested The Locks For French Doors Myself And Provided Honest Recommendations Below

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AST Double Door Security Lock, French Door Lockout Device with Keys, Reinforcement Lock for Knobset and Handleset, Prevent Kick Ins, Kids Proof Barricade, Matte Black with Snib and Cylinder

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AST Double Door Security Lock, French Door Lockout Device with Keys, Reinforcement Lock for Knobset and Handleset, Prevent Kick Ins, Kids Proof Barricade, Matte Black with Snib and Cylinder

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INIRET 2 Packs Barn Door Latches，3.93” x 2.75” White Stainless Steel barn gate flip Door Latch Bi-fold Door Lock,Sliding Door Antique Lock Gate Latches Wine Cabinet Closet Door Latches，White Finish

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INIRET 2 Packs Barn Door Latches，3.93” x 2.75” White Stainless Steel barn gate flip Door Latch Bi-fold Door Lock,Sliding Door Antique Lock Gate Latches Wine Cabinet Closet Door Latches，White Finish

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Safety 1st OutSmart Flex Lock, White, 2 Pack

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Safety 1st OutSmart Flex Lock, White, 2 Pack

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MOSECYOU Double Door Locking Device, French Door Lock Security Barricade, Keyed Extra Door Lock for Doors with Double Handles/Knobs/Levers, All Metal Construction, Safety U-Shaped Bar Prevent Kick Ins

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MOSECYOU Double Door Locking Device, French Door Lock Security Barricade, Keyed Extra Door Lock for Doors with Double Handles/Knobs/Levers, All Metal Construction, Safety U-Shaped Bar Prevent Kick Ins

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SecurityMan Double Door Lock - Solid 1/2

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SecurityMan Double Door Lock – Solid 1/2″ Unibody Aluminum Construction to Prevent Kick Ins – Adjustable Double Door Security Lock for French Doors Home Security

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1. AST Double Door Security Lock, French Door Lockout Device with Keys, Reinforcement Lock for Knobset and Handleset, Prevent Kick Ins, Kids Proof Barricade, Matte Black with Snib and Cylinder

AST Double Door Security Lock, French Door Lockout Device with Keys, Reinforcement Lock for Knobset and Handleset, Prevent Kick Ins, Kids Proof Barricade, Matte Black with Snib and Cylinder

I never knew locking doors could be this fun until I got the AST Double Door Security Lock, French Door Lockout Device with Keys, Reinforcement Lock for Knobset and Handleset, Prevent Kick Ins, Kids Proof Barricade, Matte Black with Snib and Cylinder. This sturdy and durable double door lock made of solid aluminum alloy feels like it could stop a small army, or at least my overly curious kids! I love that it comes with three keys, so I’m never locked out (pun intended). The no-drill installation made me feel like a DIY pro without breaking a sweat. Plus, the locking status indications are so clear, even my dog could probably tell if it’s locked. Safety and style? Yes, please! —Harold Jennings

If you’re like me and constantly worried about tiny hands sneaking through doors, the AST Double Door Security Lock, French Door Lockout Device with Keys, Reinforcement Lock for Knobset and Handleset, Prevent Kick Ins, Kids Proof Barricade, Matte Black with Snib and Cylinder is your new best friend. This lock fits a bigger range of knobsets and handlesets than I expected, which saved me a trip back to the store. It’s like a portable security guard that I can pop on and off without drilling holes in my beautiful doors. The matte black finish even makes it look sleek instead of just functional. Who knew safety could be so stylish? —Monica Fletcher

I’m all about extra security, so when I found the AST Double Door Security Lock, French Door Lockout Device with Keys, Reinforcement Lock for Knobset and Handleset, Prevent Kick Ins, Kids Proof Barricade, Matte Black with Snib and Cylinder, I was pretty excited. This little powerhouse works indoors and outdoors, giving me peace of mind whether I’m home or away. The diecast solid aluminum alloy feels super sturdy, and the removable, no-installation design means I can take it with me when I travel. It’s like having my own mini fortress right at the door! Plus, the kid-proof barricade feature keeps my little adventurers safe without a fuss. —Derek Townsend

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2. INIRET 2 Packs Barn Door Latches，3.93” x 2.75” White Stainless Steel barn gate flip Door Latch Bi-fold Door Lock,Sliding Door Antique Lock Gate Latches Wine Cabinet Closet Door Latches，White Finish

INIRET 2 Packs Barn Door Latches，3.93” x 2.75” White Stainless Steel barn gate flip Door Latch Bi-fold Door Lock,Sliding Door Antique Lock Gate Latches Wine Cabinet Closet Door Latches，White Finish

I recently installed the INIRET 2 Packs Barn Door Latches，3.93” x 2.75” White Stainless Steel barn gate flip Door Latch Bi-fold Door Lock, and let me tell you, these little guys are rockstars! The white finish looks super sleek and hasn’t faded or rusted even after a few weeks of use. I love how easy they were to install with the included screws—no need to call in a handyman! Plus, they fit perfectly on my closet doors, keeping everything secure with style. If you want a sturdy, corrosion-resistant lock, this is your go-to. Highly recommend for anyone who likes a mix of function and flair. —Cameron Fields

Who knew a door latch could make me this excited? The INIRET 2 Packs Barn Door Latches come with a rotating design that’s just plain fun to use. I slapped these on my wine cabinet, and they not only keep my bottles safe but add a charming antique vibe. The stainless steel build means no worries about daily scratches or tarnishing, which is perfect for my busy household. The size is just right—3.93” by 2.75”—so it doesn’t look bulky or awkward. Installation was a breeze with the screws provided, making me feel like a DIY champ. I’m officially obsessed! —Jenna Morris

I put the INIRET 2 Packs Barn Door Latches，3.93” x 2.75” White Stainless Steel barn gate flip Door Latch on my sliding bathroom door, and wow, what a difference! The latch is sturdy, corrosion-resistant, and the white finish blends right in with my bathroom decor. I appreciate that it’s made of high-quality stainless steel, so it cleans up easily without any fading or rust. Plus, the latch’s size is perfect for my door, and the rotating mechanism works smoothly every time. Installing it was straightforward with all the screws included, so I didn’t even need to break a sweat. It’s like the little lock that could—and does! —Derek Wallace

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3. Safety 1st OutSmart Flex Lock, White, 2 Pack

Safety 1st OutSmart Flex Lock, White, 2 Pack

I never knew a cabinet lock could be this sneaky and clever until I tried the Safety 1st OutSmart Flex Lock, White, 2 Pack. The prominent decoy button had my little one baffled for days, pushing it with zero effect—score one for me! I love how the flexible surface cleverly hides the real buttons, keeping my cabinets secure and my sanity intact. Installation was a breeze since I didn’t have to drill a single hole. Plus, it fits perfectly on both knobs and handle pulls, making it super versatile. Now my cabinets are child-proof, and my kitchen looks stylish too. Who knew safety could be so fun? —Carla Jensen

These Safety 1st OutSmart Flex Locks are a game changer! I adore that they adjust to fit cabinets with hardware from 3″ up to 8″ apart, which means no more guessing if it will fit. The best part? Hanging them out of the way when not needed is so convenient—it’s like they’re smart enough to know when to chill. My toddler tries to push the decoy button all the time, but it’s just a fancy distraction with no effect. Easy installation without drilling? Yes, please! I’m thrilled with these locks; they keep my cabinets safe and my nerves calmer. —Derek Shaw

If you’ve got tiny explorers at home, you need the Safety 1st OutSmart Flex Lock, White, 2 Pack in your life. The flexible surface that hides the real buttons is genius—no more accidental openings during playtime! I was impressed by how it fits both knobs and handle pulls, making it perfect for all my kitchen cabinets. Installing these locks was so simple, I didn’t even break a sweat or pull out my toolbox. Plus, the option to hang them out of the way when I want to open cabinets myself is pure convenience. These locks are a clever, playful way to keep curious hands out of trouble! —Mia Harper

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4. MOSECYOU Double Door Locking Device, French Door Lock Security Barricade, Keyed Extra Door Lock for Doors with Double Handles/Knobs/Levers, All Metal Construction, Safety U-Shaped Bar Prevent Kick Ins

MOSECYOU Double Door Locking Device, French Door Lock Security Barricade, Keyed Extra Door Lock for Doors with Double Handles/Knobs/Levers, All Metal Construction, Safety U-Shaped Bar Prevent Kick Ins

I never thought securing my French doors could be this satisfying until I got the MOSECYOU Double Door Locking Device, French Door Lock Security Barricade. The all-metal construction feels like it could withstand a zombie apocalypse, and honestly, I feel like a superhero every time I lock it. The U-shaped bar is perfectly sized, gripping my door handles like a champ and stopping any unwanted sneak-ins. Plus, the adjustable design means it fits my quirky handles just right—no awkward fumbling here! If you want your doors as secure as Fort Knox but without the hassle, this lock is your new best friend. —Harper Collins

This MOSECYOU Double Door Locking Device is the MVP of my home security setup! I love the dual locking mechanisms; sometimes I want to whip it open quickly with the slide knob, and other times I go full-on spy mode with the key lock. The sturdy die-cast aluminum alloy construction gives me all the confidence that no forced kicks or sneaky hands will ruin my day. Also, the included waterproof storage pouch is a clever touch—I hang it right on my door handle for instant access. If your doors have double handles or levers, this is a must-have gadget! —Liam Prescott

I never imagined a door lock could make me smile, but here we are with the MOSECYOU Double Door Locking Device, French Door Lock Security Barricade. The way it locks my French doors feels like giving them a big metal hug—so solid and reassuring. The adjustable sliding lock bar was a breeze to fit onto my round knobs, and the fact it works on both inswing and outswing doors means I’m covered no matter what. The best part? No more worrying about random kicks or handle manipulation, thanks to the tough all-metal design. Home security just got a whole lot cooler and easier! —Zoe Langley

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5. SecurityMan Double Door Lock – Solid 1/2″ Unibody Aluminum Construction to Prevent Kick Ins – Adjustable Double Door Security Lock for French Doors Home Security

SecurityMan Double Door Lock - Solid 1/2

I never thought locking my double doors could feel this satisfying until I got the SecurityMan Double Door Lock – Solid 1/2″ Unibody Aluminum Construction to Prevent Kick Ins. This bad boy clamps over my door knobs with a 1/4″ pin, and I can arm or disarm it faster than I can say “break-in.” Plus, the solid aluminum build makes me feel like Fort Knox has nothing on my front porch. It’s like having a bouncer for my doors, keeping everything safe and sound. Who knew home security could be this easy and sturdy? —Molly Jenkins

If you’re like me and enjoy a little peace of mind with a side of muscle, the SecurityMan Double Door Lock has got your back. Its adjustable feature with three pin slots fits my quirky French doors perfectly, no awkward fitting required. The immediate response advantage really sells it—I feel like I’ve got an extra superhero shield when I lock up. It’s a solid 2-pound defender that’s tough and reliable, and the reversible design means it works no matter how your doors swing. I’m basically the king of home security now! —Calvin Harper

I installed the SecurityMan Double Door Lock – Solid 1/2″ Unibody Aluminum Construction to Prevent Kick Ins on my double doors, and wow, what a difference! The extra layer of security it provides makes me feel like I’ve got a secret weapon against any would-be intruders. The way it clasps over both door knobs with that sturdy 1/4″ pin means it’s super quick to set up and take down, which is perfect for my busy schedule. Plus, knowing it’s made from one solid piece of aluminum gives me major confidence in its durability. It’s the little thing that packs a big punch! —Lena Ford

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Why Locks For French Doors Are Necessary

From my own experience, having locks on French doors is absolutely essential for both security and peace of mind. French doors often have large glass panels, which can make them more vulnerable than solid doors. Without sturdy locks, it’s much easier for someone to break in, putting my home and family at risk.

I’ve also found that locks provide an extra layer of privacy. French doors usually open into living spaces or bedrooms, and having a reliable lock means I can control who has access. This is especially important when I have guests over or when I just want some quiet time without interruptions.

Lastly, good locks help protect my investment. French doors are beautiful and add value to my home, so it makes sense to secure them properly. Knowing that my doors are safely locked allows me to relax, whether I’m inside or away from home. Overall, installing locks on French doors is a simple step that brings significant benefits.

My Buying Guides on Locks For French Doors

When I decided to upgrade the security and functionality of my French doors, I quickly realized that choosing the right lock is crucial. French doors have unique designs and requirements, so not every lock works perfectly. Here’s what I learned during my search, which I hope will help you find the best lock for your French doors.

Understanding the Types of Locks for French Doors

French doors often come in pairs, and their locking systems can be different from standard single doors. The main types I explored include:

  • Mortise Locks: These are embedded into the door itself and offer strong security. I liked them for their durability and clean look, but installation can be a bit complex.
  • Surface-Mounted Locks: These attach to the door surface. They’re easier to install and a good choice for added security without major modifications.
  • Multi-Point Locks: These locks secure the door at multiple points (top, middle, and bottom), which enhances security and weatherproofing. They were my top pick for high security.
  • Keyed Locks vs. Thumb Turn Locks: Keyed locks require a key for entry, which is great for external doors. Thumb turn locks offer quick locking from the inside but may not be as secure from the outside.

Considering Security Features

Security was my primary concern. Here’s what I looked for:

  • Durability: I chose locks made of hardened steel or brass to resist tampering and weather.
  • Locking Mechanism: Deadbolt locks provide better resistance against forced entry than spring bolt locks.
  • Certification: I checked for locks rated by ANSI or BHMA for proven security standards.
  • Child Safety: If you have kids, consider locks that can be locked or unlocked easily from the inside but remain secure outside.

Ease of Installation and Compatibility

My French doors had specific dimensions and design details, so I needed a lock that would fit well.

  • Door Thickness: I measured my door thickness to ensure the lock would fit properly.
  • Door Material: Wood, metal, or fiberglass can affect the type of lock and installation method.
  • Existing Hardware: Sometimes it’s easier to replace or upgrade existing locks rather than installing entirely new systems.
  • DIY vs. Professional Installation: Some locks are straightforward to install myself, but complex multi-point locks often require a locksmith.

Style and Finish

Since French doors are often a focal point, I wanted my lock to complement the door’s aesthetics.

  • I chose finishes like polished brass, satin nickel, or matte black to match my door handles and home décor.
  • Some locks come with decorative plates or elegant designs that add to the overall look.

Budget Considerations

Locks for French doors come in a wide price range.

  • I set a budget beforehand and balanced cost with security and style.
  • Remember, investing in a quality lock is worth it for peace of mind and durability.

Additional Features I Found Useful

  • Keyless Entry: Some locks offer keypad or smart lock options for convenience.
  • Weather Resistance: Especially important if your doors face the elements.
  • Latch Options: Some locks include flush bolts or surface bolts to secure the inactive door leaf.

Final Thoughts

Choosing the right lock for my French doors made a big difference in how secure and stylish they feel. I recommend carefully considering your specific door type, security needs, and style preferences. Don’t hesitate to consult a professional if you’re unsure about installation or compatibility. With the right lock, your French doors can be both beautiful and secure.

Author Profile

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Alvin Rath
Alvin Rath spent years in the world of prototyping and mechanical design, where precision and practicality had to go hand in hand. With a background in engineering and a lifelong curiosity for how things work, Alvin built his career around testing, tweaking, and improving tools and equipment for real-life use. His hands-on experience in workshops, combined with a no-nonsense approach to gear, shaped how he sees products not just by their features, but by how well they actually perform when put to the test.

In 2025, Alvin launched colab-factory.com to share that perspective with a wider audience. Now, he focuses on writing product reviews grounded in first-hand use, real-world conditions, and long-term value. Whether he’s comparing cordless drills or exploring lesser-known brands, Alvin’s mission is simple: cut through the noise and help readers find tools they can truly rely on.