Is Your Door Compatible with WELOCK Smart Lock? Check Compatibility in 3 Easy Steps

WELOCK smart locks are designed to fit most European doors—but before you buy, it's important to make sure your door is compatible. The good news? It only takes 3 simple checks, and we’ve included clear images for each step to guide you. No tools or technical skills needed—just a ruler and a few minutes.

Let’s get started!

Step 1: Identify Your Lock—Is It a Euro Profile Cylinder?

WELOCK smart locks are designed for Euro profile doors, which are the most common in European homes.

How to tell:

The lock cylinder is visible from both sides of the door.

It's shaped like a keyhole.

There’s a single fixing screw on the side edge of the door.

If your lock looks like the one in Image 1, it’s compatible with the WELOCK smart lock.

Step 2: Measure Your Door Thickness

Next, use a ruler or tape measure to check the thickness of your door.

WELOCK supports:

Doors with a thickness between 50mm and 100mm or 30mm and 70mm

Most wooden, metal, and uPVC doors

Image 2 shows where to place your ruler for an accurate measurement.

Step 3: Measure the Backset (Distance to the Door Edge)

Finally, check the backset—the distance from the center of the keyhole to the edge of the door. This ensures there’s enough room for the smart lock body to fit.

WELOCK requires:

A minimum backset of 40mm

As shown in Image 3, this quick measurement confirms if your door has enough clearance for installation.

Why Choose WELOCK?

✅ Compatible with standard Euro profile cylinders

🧰 DIY installation—no locksmith required

🔓 Multiple unlocking options: fingerprint, passcode, RFID card, mobile app

🚚 Free EU shipping from local warehouse

💬 30-day return, 2-year warranty, and lifetime customer support

🔗 Browse WELOCK smart locks that fit your door →

Final Thoughts: 3 Images. 3 Steps. 1 Smart Upgrade.

With just three easy measurements—and the help of a few images—you’ll know for sure whether a WELOCK smart lock is right for your door. No need for complicated tools or professional installers.

Ready to upgrade your door?
🔗 Click here to explore WELOCK smart lock options