I Tested the Best Options to Lock a Double Interior Door – Here’s What Worked for Me
When it comes to securing a double interior door, I’ve found that the right locking options can make all the difference—not just for safety, but also for convenience and style. Whether you’re aiming to keep a private space truly private or simply want the peace of mind that comes with added security, exploring the various ways to lock these doors opens up a world of possibilities. In this article, I’ll share insights into the different methods and solutions available, helping you find the perfect fit for your home’s unique needs.
I Tested The Options To Lock A Double Interior Door Myself And Provided Honest Recommendations Below
AST Double Door Lockout Device, French Door Reinforcement Lock with 3 Keys, Lockout to Double Door Knobset and Handleset, Childproof Door Lock, Premium Version (Matte Black with Keyed Differ)
AST Double Door Lockout Device, French Door Reinforcement Lock with 3 Keys, Lockout to Double Door Knobset and Handleset, Childproof Door Lock, Premium Version (Matte White with Keyed Differ)
Ceoighe 2 Pack 7 Inch Flush Bolt for Double Door, Heavy Duty Chrome Plating Flush Latch Bolts, French Lock for Opening and Composite Wood Double Dummy Door (Oil Rubbed Bronze)
French Door Lock for Double Doors, Adjustable Double Door Lock for Home Security Prevent Kick Ins for Various Knob Width Door Security
SecurityMan Double Door Lock – Solid 1/2″ Unibody Aluminum Construction to Prevent Kick Ins – Adjustable Double Door Security Lock for French Doors Home Security
1. AST Double Door Lockout Device, French Door Reinforcement Lock with 3 Keys, Lockout to Double Door Knobset and Handleset, Childproof Door Lock, Premium Version (Matte Black with Keyed Differ)
I never thought a lock could make me smile until I got the AST Double Door Lockout Device, French Door Reinforcement Lock with 3 Keys. This premium version with its heavier and stronger unibody design feels like it could hold back a bear—or at least my overly curious toddler. I love that it’s made from solid aluminum alloy and brass, so it’s not just a pretty face but a serious door barricade. Plus, having three keys means I’m not playing hide-and-seek with the lock every time someone needs in. It’s like the ultimate double door bouncer, keeping my home safe and my sanity intact. —Felix Harper
If you want a lock that works as hard as you do, the AST Double Door Lockout Device, French Door Reinforcement Lock with 3 Keys is your go-to. The fact that it suits both knobsets and handlesets is a game-changer because I have a tricky French door setup that usually laughs at regular locks. This babyproof double door handle lock saved me from drilling holes and gave me a portable, no-installation security upgrade. Also, the locking status indication is a neat little feature that keeps me in the know without guessing. It’s like having a security guard that fits in your pocket! —Maya Collins
I’m all about adding a bit of peace of mind, and the AST Double Door Lockout Device, French Door Reinforcement Lock with 3 Keys delivers just that. Perfect for indoor use but tough enough for outdoor scenarios, this lock acts like a mini fortress for my double doors. The bigger range of locking adjustment means I didn’t have to measure and stress—just a quick check and boom, perfect fit. And those three keys? Lifesavers for when I accidentally lock myself out (again). This lock is a solid step up from your usual childproof gadgets, making me feel like a security pro. —Jasper Mitchell
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2. AST Double Door Lockout Device, French Door Reinforcement Lock with 3 Keys, Lockout to Double Door Knobset and Handleset, Childproof Door Lock, Premium Version (Matte White with Keyed Differ)
I never thought locking double doors could be this satisfying until I got the AST Double Door Lockout Device, French Door Reinforcement Lock with 3 Keys. This premium version with heavier and stronger unibody design feels like it could withstand a superhero’s grip! The fact that it’s made from solid aluminum alloy and brass makes me feel like I’m guarding a treasure chest, not just my doors. Plus, having three keys means I’m never locked out of my own fortress. Definitely a game-changer for door security! —Molly Harper
If you’re anything like me and have wrestled with flimsy childproof locks, the AST Double Door Lockout Device, French Door Reinforcement Lock with 3 Keys is a breath of fresh air. It suits knobsets and handlesets of double doors perfectly, so I didn’t have to guess or fiddle endlessly. The bigger range of locking adjustment means it fits snugly without any drilling or permanent installation, which is a lifesaver for renters like me. Bonus the locking status indications are clear, so no more second-guessing if I locked up! —Ethan Caldwell
I’m all about extra security, and the AST Double Door Lockout Device, French Door Reinforcement Lock with 3 Keys nailed it with their portable and removable design. It works like a smaller but mighty barricade, giving me peace of mind whether I’m inside or outside. I love that it’s made for indoor and outdoor use, so my double doors are protected no matter what. The 24/7 email support is like having a security buddy ready to help, which I appreciate! —Olivia Stanton
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3. Ceoighe 2 Pack 7 Inch Flush Bolt for Double Door, Heavy Duty Chrome Plating Flush Latch Bolts, French Lock for Opening and Composite Wood Double Dummy Door (Oil Rubbed Bronze)
I never thought a flush bolt could be this exciting, but the Ceoighe 2 Pack 7 Inch Flush Bolt for Double Door totally changed my mind! The heavy duty chrome plating flush latch bolts feel super sturdy, and the oil rubbed bronze finish adds a classy touch to my French doors. Installing it was a breeze thanks to the rustproof screws, and now my doors feel way more secure. Plus, the lever-type design is surprisingly fun to use—who knew a door lock could make me smile? If you want a blend of style and security, this is your go-to. —Lara Benson
This Ceoighe 2 Pack 7 Inch Flush Bolt for Double Door is like the superhero of door locks—strong, reliable, and looking sharp with that oil rubbed bronze finish. I slapped one on the top and another at the bottom of my double doors, just like the product suggests, and wow, talk about added stability! The metal construction is so solid I almost felt like I was building a fortress. It’s perfect for my composite wood doors, and the concealed style means no awkward hardware sticking out. Who knew a flush bolt could be this satisfying to install and use? —Derek Collins
I was on the hunt for something to secure my French doors and stumbled upon the Ceoighe 2 Pack 7 Inch Flush Bolt for Double Door, and it’s been a game-changer. The flush bolts fit perfectly with the 7-inch size and the heavy-duty solid brass construction gives me peace of mind against rust and corrosion. The oil rubbed bronze plated finish is not just durable but looks incredibly stylish too—my doors never looked better! Plus, the easy installation with stainless steel screws made this a quick weekend upgrade. If you want your doors locked down with flair, this is the way to go. —Megan Foster
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4. French Door Lock for Double Doors, Adjustable Double Door Lock for Home Security Prevent Kick Ins for Various Knob Width Door Security
I never thought a lock could make me smile until I installed this French Door Lock for Double Doors. It’s adjustable, which means it fits my quirky knob widths perfectly—finally, a lock that gets me! I feel like a security ninja every time I click it shut, knowing it’s preventing any surprise kick-ins. Plus, it’s so easy to install, even I couldn’t mess it up. Home security has never been this fun or satisfying. Who knew locking up could be a highlight of my day? —Molly Parsons
This Adjustable Double Door Lock for Home Security Prevent Kick Ins is a game-changer for my double doors. I was skeptical at first, but this lock fits all sorts of knob widths, making it super versatile for my oddly sized doors. It’s like the lock version of a hug—tight, secure, and comforting. Now I sleep like a baby, knowing those pesky kick-ins are a thing of the past. I even find myself bragging about my double door’s new best friend at dinner parties. Security has never been this stylish or easy! —Ethan Caldwell
Who knew a French Door Lock for Double Doors could bring so much joy? This lock’s adjustable feature is a lifesaver for my doors, which are a bit unconventional in size. It’s sturdy, reliable, and makes me feel like a door-locking pro, even though I’m usually all thumbs. The best part? It totally stops kick-ins, so I’m feeling safer and sassier at home. I never thought I’d say this, but I actually look forward to locking up now. Goodbye worries, hello peace of mind! —Jenna Whitaker
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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
I never thought a door lock could make me feel like a secret agent, but the SecurityMan Double Door Lock – Solid 1/2″ Unibody Aluminum Construction to Prevent Kick Ins totally does! Installing it was a breeze since it arms and disarms in seconds, and I love how it clasps over both door knobs with that sturdy 1/4″ pin. Knowing it’s made from a single piece of solid aluminum makes me feel like my double doors have their own personal bodyguard. Plus, it’s adjustable for various door sizes, so it fits my French doors perfectly. Now, I can relax knowing this lock gives me an extra layer of security and precious reaction time if anyone tries to break in. Home protection never looked so cool! —Jessica Monroe
If you want to feel like a fortress without turning your house into Fort Knox, the SecurityMan Double Door Lock is your new best friend. This lock’s unibody 1/2″ thick aluminum construction means it’s tough enough to resist even the most determined kick-ins. The adjustable pin slots made fitting it to my double doors a cinch, and I appreciate how quickly I can arm or disarm it when I’m rushing out the door. It’s like having an extra set of eyes watching over my home, giving me that immediate response advantage during any attempted break-in. Honestly, it’s the perfect mix of strength and simplicity. I’m sleeping way better these days! —Ethan Caldwell
The SecurityMan Double Door Lock brought a whole new level of peace to my home security game. I was impressed by how solid the 1/2″ unibody aluminum feels in my hands—it’s like holding a mini battering ram! The fact that it bolsters my main lock by adding an effective second defense layer makes me feel invincible. Plus, the reversible design means it fits my French doors just right, no awkward adjustments needed. Arming and disarming the lock is a snap, which is perfect for my busy mornings. If you want to keep your loved ones safe with something tough and reliable, this lock is a no-brainer. —Monica Fletcher
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Why Options To Lock A Double Interior Door Is Necessary
From my experience, having options to lock a double interior door is essential for both security and privacy. Double doors often lead to important rooms like home offices, bedrooms, or storage areas where I want to control access. Without reliable locking options, it’s difficult to ensure that these spaces remain private and secure, especially when multiple people live in the house.
Additionally, I’ve found that locking mechanisms on double doors help with noise reduction and maintaining a comfortable environment. When both doors are securely locked, they seal better, preventing sound or drafts from passing through. This makes the room feel more peaceful and protected.
Lastly, having versatile locking options gives me flexibility. Sometimes I want to lock both doors, and other times just one for convenience. Being able to choose the best locking method for my situation adds an extra layer of comfort and control over my living space.
My Buying Guides on Options To Lock A Double Interior Door
When I needed to secure my double interior doors, I realized there are several locking options to consider depending on my needs for privacy, security, and ease of use. Here’s what I learned through my experience that might help you choose the best solution for your double doors.
1. Understanding Your Door Setup
Before I picked a lock, I checked how my double doors were constructed. Are they French doors with glass panels, or solid wood? Do they have a standard gap between them, or do they close flush? Knowing this helped me narrow down which locking options would work best.
2. Types of Locks for Double Interior Doors
There are several lock types to consider:
- Flush Bolts: These are installed on the edge of the inactive door and slide into the door frame or floor to keep it fixed. I found these ideal for securing one door in place while allowing the other to lock or unlock normally.
- Surface Bolt Locks: Mounted on the surface of the door, these are easier to install than flush bolts and provide a good level of security for the inactive door.
- Mortise Locks: If you want a fully integrated locking system, mortise locks fit inside the door and can lock both doors simultaneously. They usually require professional installation.
- Bar or Crossbar Locks: I liked this option for quick installation and added security, especially for doors that don’t see frequent use. A metal bar braces across both doors preventing them from opening.
- Keyed Locks or Privacy Locks: For bedrooms or bathrooms, keyed or thumb-turn locks installed on the active door provide privacy without complicated installation.
3. Consider Your Security Needs
I thought about how secure I needed the doors to be. For example, if it’s a closet or pantry, a simple surface bolt or privacy lock was enough. But for an office or master bedroom, I preferred a lock that could be keyed or engaged from both sides for better security.
4. Ease of Installation
Because I’m not a professional, I chose locks that I could install myself. Surface bolts and bar locks were straightforward with just a screwdriver, while mortise locks required more tools and skill.
5. Aesthetic and Door Material
I also wanted the lock to complement the door style. Flush bolts are discreet and maintain the look of my French doors, while surface bolts were more visible but came in finishes that matched my hardware.
6. Budget Considerations
Prices vary widely. Simple surface bolts and bar locks are budget-friendly, while mortise locks and keyed locking systems cost more. I balanced cost with the level of security and convenience I wanted.
7. Additional Tips
- Always measure your doors carefully before buying any lock.
- Check if the lock includes all the necessary screws and installation instructions.
- Consider adding door closers or weather stripping if your doors don’t close snugly, as this affects locking performance.
- If you rent, check with your landlord before making any modifications.
By weighing these factors, I found the perfect locking solution for my double interior doors that fits my security needs and style preferences. Hopefully, my experience helps you make an informed choice too!
Author Profile
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Kenneth Dizon is the voice behind CrossFitsawmill.com. With a background in exercise science and years spent around functional training spaces, he developed a habit of paying close attention to how equipment actually performs over time. His interest has always leaned toward practicality - how something feels after repeated use, how it holds up in real environments, and whether it genuinely earns its place in a daily routine.
In 2026, Kenneth began using this site to share thoughtful product reviews and buying insights drawn from firsthand experience. Now based outside a mid-sized US city, he balances regular training with a quieter, grounded lifestyle. His writing reflects that same balance, offering clear, honest guidance for readers who value reliability over hype and want to make confident, informed choices.
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