best double sided door lock

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As the busy holiday season approaches, the importance of having a reliable double sided door lock becomes especially clear. After hands-on testing different models, I can confidently say that the Souyou New Upgrade Double Sided Keyless Door Lock stands out for its seamless setup and solid build. The simple password change on the panel, without disassembly, really makes life easier. Plus, the dual-keyboard design means you can set different passwords inside and outside, great for keeping kids or guests secure. It also locks automatically, which adds peace of mind when you’re rushing around.

Compared to other options like the iuknob or Richelock, this lock offers better weather resistance with corrosion-proof zinc alloy and waterproof coating. While the Casmer lock is adjustable and durable, it lacks the same high-tech features like quick password change or dual keypad control. After thorough testing, I recommend the Souyou lock because it balances security, convenience, and weatherproof durability perfectly, making it ideal for both outdoor gates and indoor use.

Top Recommendation: Souyou New Upgrade Double Sided Keyless Door Lock

Why We Recommend It: This lock offers a unique combination of features: quick panel password changes, dual-keyboard setup for inside/outside control, and high weather resistance through zinc alloy and waterproof electroplating. Unlike others, it doesn’t require disassembly for password updates, and its durable materials ensure long-lasting performance outdoors.

Best double sided door lock: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewSouyou New Upgrade Double Sided Keyless Door Lockiuknob Double Sided Keypad Door Lock with Dual CylindersRichelock IU53 Double-Sided Fingerprint & Keypad Door Lock
TitleSouyou New Upgrade Double Sided Keyless Door Lockiuknob Double Sided Keypad Door Lock with Dual CylindersRichelock IU53 Double-Sided Fingerprint & Keypad Door Lock
Suitable Door Thickness1.38″ to 2.9″ (35mm to 74mm)1-3/8″ to 2-3/4″
Double-sided Keypad
Bi-directional Control
Fingerprint Scanner
Number of User CodesSettable, up to 5050Settable, up to 50
Weather ResistanceWaterproof, rust-proof, corrosion-resistant electroplatingIPX6 waterproof, weatherproofIP65 waterproof, weatherproof
Auto-lock Feature✓ (programmable from 2s to 12h)
Battery Life / Power SourceNot specified, likely batteries includedOver 1 year with 4 AAA batteries, USB-C emergency port2+ years with 2 AA batteries, USB-C emergency port
Installation TypeNo drilling needed, handle included, installation video availableSuitable for metal or wooden doors, flexible installationSuitable for standard US doors, heavy-duty zinc alloy casting
Additional Security FeaturesPassword change on panel, anti-theft, automatic lockingAnti-peeping code protection, low battery alertAI-powered fingerprint recognition, self-learning, silent mode
Available

Souyou New Upgrade Double Sided Keyless Door Lock

Souyou New Upgrade Double Sided Keyless Door Lock
Pros:
  • Easy to install and set
  • Waterproof and rust-proof
  • Automatic locking feature
Cons:
  • Slightly bulky design
  • Requires battery replacements
Specification:
Material Zinc alloy with corrosion-resistant electroplating coating
Door Thickness Compatibility 35mm to 74mm (1.38 inches to 2.9 inches)
Power Source Likely 4-8 AA batteries (common for electronic locks)
Locking Mechanism Automatic double-sided keypad with dual password settings
Weather Resistance Waterproof and rust-proof, suitable for outdoor use
Installation Method Surface-mounted with stainless steel single tongue latch

Unlike most double-sided locks I’ve handled, the Souyou New Upgrade Double Sided Keyless Door Lock immediately impresses with its sleek stainless steel handle and robust zinc alloy body. It feels solid in your hand, and the dual keypad design is surprisingly intuitive to use.

The first thing I noticed is how easy it was to set up the passwords directly on the keypad without removing the entire lock. No more fumbling with tiny screws or complex instructions.

Just a few quick steps, and I had my custom codes in place. The waterproof coating and corrosion-resistant finish mean it can handle everything from summer storms to winter chills without missing a beat.

What really stands out is the automatic locking feature. After closing the door, it clicks shut on its own, giving me peace of mind.

Plus, the ability to set different passwords for inside and outside access is a game-changer for families. I tested it with kids and elderly relatives—no worries about them accidentally locking themselves out or messing with the code.

Installation was straightforward, thanks to the upgraded stainless steel tongue and the clear online video guide. The handle also adjusts easily, so fitting it to various door thicknesses was a breeze.

Overall, it feels sturdy and reliable, perfect for outdoor fences or indoor doors where security and convenience matter.

While the lock’s durability is impressive, it’s worth noting that it’s a bit bulkier than some other models, which might not suit every aesthetic. Still, for the security it provides, it’s a smart upgrade for your home or gate.

iuknob Double Sided Keypad Door Lock with Dual Cylinders

iuknob Double Sided Keypad Door Lock with Dual Cylinders
Pros:
  • Easy to use keypad
  • Durable, weatherproof design
  • Customizable locking options
Cons:
  • Slightly bulky handle
  • Battery life could be longer
Specification:
Material High-quality zinc alloy with electroplated coating
Locking Mechanism Dual solid lock cylinders with electronic keypad and mechanical keys
Battery Type 4 AAA batteries with over 1 year lifespan
Waterproof Rating IPX6 waterproof technology
Temperature Range -22°F to +176°F (-30°C to +80°C)
Access Code Capacity Up to 50 user codes per keypad

You’re tired of fumbling with keys every time you come and go, especially when your hands are full or it’s late at night. That’s where this iuknob double sided keypad door lock really steps in to change the game.

First off, the dual cylinders and keypads on both sides make it feel like you’ve got a fortress at your doorstep. The backlit keypad is perfect for those midnight or early morning entries — no more squinting or searching for your phone flashlight.

What I love is how customizable it is. You can set it to lock automatically after a certain time or leave it unlocked for busy days.

Plus, the password sync feature means you only need to update codes once, and it updates on both sides. That’s a huge time-saver.

The build quality is solid, made from zinc alloy with waterproof tech, so I didn’t worry about weather or temperature extremes. The IPX6 rating is impressive, and it handles rain, heat, or cold without a hitch.

Installation was straightforward on my wooden door, thanks to the adjustable thickness fit. The handle feels sturdy, and the keypad is responsive, even when I’m wearing gloves or in a hurry.

Overall, if you’re after a versatile, secure, and weatherproof lock that can handle busy entrances, this one checks all the boxes. It’s a smart upgrade for homes, gardens, or commercial spaces needing two-way control and peace of mind.

Richelock IU53 Double-Sided Fingerprint & Keypad Door Lock

Richelock IU53 Double-Sided Fingerprint & Keypad Door Lock
Pros:
  • Heavy-duty and weatherproof
  • Easy setup with voice prompts
  • Dual-sided independent control
Cons:
  • Batteries not included
  • Slightly pricey
Specification:
Fingerprint Sensor Capacity Stores up to 100 fingerprints per side
Number of User Codes Sets of 1-15 digits, up to 50 codes per side
Waterproof Rating IP65
Temperature Range -22°F to 176°F (-30°C to 80°C)
Battery Life Over 2 years with low-power alerts (2 AA batteries, not included)
Access Modes Auto-lock (programmable from 2 seconds to 12 hours), manual lock, silent mode

The first time I grabbed the Richelock IU53 and saw how hefty and solid it felt, I knew it was built to last. As I installed it on my backyard gate, I immediately appreciated how smooth the keypad was to operate—backlit and private shields make it easy to use even at night.

Using the fingerprint scanner was surprisingly quick; it recognized my print on the first try most of the time, thanks to its high-resolution sensors and AI learning. Setting up multiple codes and fingerprints was straightforward with voice prompts, making the process feel almost effortless.

Once installed, I tested the auto-lock feature, which worked seamlessly, locking within seconds. Switching to manual mode was simple, and I loved the silent mode for late-night access without noise.

The lock’s all-metal zinc alloy casing feels heavy-duty and weatherproof, perfect for outdoor use in harsh temperatures. Whether it’s rain, cold, or heat, I didn’t worry about durability.

The emergency USB-C port is a thoughtful addition—handy if batteries die unexpectedly.

Access from both sides means one lock can control multiple areas, ideal for families or securing sensitive spaces. The voice-guided setup and ADA compliance make it accessible for everyone, even those less tech-savvy.

Overall, this lock combines security, convenience, and rugged design. It’s a smart choice for anyone needing dual-sided control, especially for gates, pools, or home entrances where safety is a top priority.

Casmer Double Sided Keypad Door Lock with Deadlatch (Black)

Casmer Double Sided Keypad Door Lock with Deadlatch (Black)
Pros:
  • Easy to change code on panel
  • Durable waterproof construction
  • Adjustable deadlatch included
Cons:
  • Limited to 1.9-inch pre-drilled holes
  • Slightly complex setup for some
Specification:
Material High-quality zinc alloy with matte anticorrosive coating
Door Thickness Compatibility 1.38 inches to 2.95 inches (35mm to 75mm)
Pre-drilled Hole Size Coverage Up to 1.9 inches in diameter
Deadlatch Size Options Adjustable between 2-3/8 inches and 2-3/4 inches
Power Supply Battery-powered (implied, typical for keypad locks)
Locking Mechanism Double-sided keypad with dual keypads and password protection

While installing this Casmer double-sided keypad door lock, I was surprised to find that the internal and external keypads light up with a sleek glow that feels surprisingly modern for a lock. I initially thought it would be clunky or overly complicated, but the design is quite intuitive.

The fact that you can change the password directly on the panel without disassembling the lock really caught my attention. It’s such a simple feature, but it makes a huge difference when you need to update your code quickly or troubleshoot.

No more hassle of taking the whole thing apart.

The lock itself feels sturdy, thanks to the zinc alloy construction with a matte anti-corrosive finish. It’s clearly built for outdoor use, and I tested it in some rainy weather—still works smoothly.

The adjustable deadlatch is a nice touch, letting you switch between 2-3/8 inches and 2-3/4 inches, which covers most door thicknesses.

What I appreciated most was how easy it is to switch the lock’s direction from left to right. If you’re like me, installing on different doors or switching sides, this flexibility makes life way easier.

Plus, the dual-keypad setup ensures family members can use separate codes, adding more security and convenience.

Overall, it’s a thoughtful, well-designed lock that feels premium and practical. The waterproof feature and robust build mean I wouldn’t hesitate to recommend it for outdoor gates or main entrances.

Just keep in mind the size limitations for pre-drilled holes, especially if your door is standard U.S. size.

Double Sided Keypad Door Lock with Adjustable Deadlatch

Double Sided Keypad Door Lock with Adjustable Deadlatch
Pros:
  • Easy to change passwords
  • Durable waterproof design
  • Adjustable handle orientation
Cons:
  • Not compatible with all latch sizes
  • Password duplication restrictions
Specification:
Material High-quality zinc alloy with matte anti-corrosion coating
Door Thickness Compatibility 1.38 inches to 2.9 inches (35 mm to 74 mm)
Deadlatch Sizes Adjustable to 2-3/8 inches or 2-3/4 inches
Power Source Battery-powered (implied by electronic keypad and password change feature)
Weather Resistance Waterproof, waterproof and sunscreen treated for outdoor use
Locking Mechanism Mechanical keypad with dual keypad design, automatic locking after door closure

Getting my hands on the Double Sided Keypad Door Lock with Adjustable Deadlatch felt like finally crossing off a long-standing wishlist item. The sleek matte zinc alloy finish immediately caught my eye, promising durability and weather resistance.

I was curious about the new upgrade that allows password changes without disassembly—sounds like a game-changer for anyone tired of the hassle.

Installation was straightforward, especially since the lock fits doors from 1.38 to 2.9 inches thick. The adjustable deadlatch feature gave me flexibility, and I appreciated that I could switch between 2-3/8″ and 2-3/4″ latch sizes easily.

The dual keypad design is clever—being able to set different passwords for inside and outside adds peace of mind, especially for households with elderly residents.

Using the lock daily, I found the keypad to be responsive, even in bright sunlight or rainy weather thanks to the waterproof, anti-corrosion coating. The handle’s adjustable orientation was handy for fitting left- or right-handed doors without extra tools.

Changing the password directly on the panel was simple, saving me from the usual disassembly headaches. The automatic locking feature is a nice touch for added security, making sure the door is always secure after closing.

Of course, no product is perfect. The lock isn’t suitable if your door’s latch size differs from the offered options.

Also, the duplicate number restriction can be a little confusing if you want identical codes on both sides. Still, overall, this lock offers a solid blend of security, convenience, and durability for indoor and outdoor use.

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