Door compatibility
Start with your door.
Use the fit guide, take the right measurements, and check the installation path before choosing a lock.
Which lock fits your door?
Which lock fits your door?
Start with the door you have. This guide suggests a product to investigate, not a confirmed fit.
Compatibility
Let your door guide the choice.
A few photos and measurements help you choose the right product before you buy.
Easy Fit
Keeps your existing lock. Check the inside thumbturn, available space, mounting surface and smooth operation against the measuring guide.
Entry Lock
For compatible single-point doors, 40-94 mm thick. Check the lock case, strike plate and door hardware.
Smart Lock Fingerprint
For compatible 40-94 mm doors. Supports a supplied single-point lock case or a compatible existing multipoint mechanism.
Before you ask
Five photos make the door clearer.
Include these photos and your measurements when asking us to check compatibility. Do not send PINs, passwords, keys, or account credentials.
- Inside of the door
- Outside of the door
- Open door edge and lock case
- Door thickness with a ruler
- Thumbturn, cylinder, and handle measurements
Designed for Scandinavian doors.
Entry Lock and Smart Lock are built around established Scandinavian door preparation, using SS 817375:2018 as their dimensional design basis. A familiar format for a smarter front door.
Door preparation & dimensions
This Swedish standard defines recess dimensions for symmetrical lock cases and their strike plates. Check the measurements and existing hardware, rather than the age of the door, to confirm the right installation path.
- Backset
- 50 mm
- Cylinder–handle centres
- 105 mm
- Lock-case faceplate (H × W)
- 225 × 22 mm
- Strike plate · door frame (H)
- 200 mm
Use the Heimgard installation template to check the complete preparation. These dimensions are a starting point, not a drilling template or confirmation of fit. The standard reference is not a security certification.
View the illustrated measuring guideMeasure before you choose.
The measuring guide shows the door views, clearances, and dimensions we need for a useful compatibility check.