Door lock Jania Z211 72/55 mm left-hand with key and lever

The Jania Z211 mortise door lock with 72/55 mm backset/center distance is a left-hand keyed model with an integrated lever. Developed for installation in standard wooden and metal doors, it combines a latch operated by the lever and a keyed deadbolt for mechanical security. The product is intended for residential and light commercial entrances where a left-hand orientation and keyed locking are required.

Advantages

This lock provides a coordinated lever and key operation that supports everyday door use while maintaining mechanical security. Its 72/55 mm measurement fits common mortise preparations, enabling straightforward replacement or retrofit in doors prepared for that center distance. The left-hand configuration ensures proper function on doors with inward or outward opening geometry that require left-side lever placement.

Suitable for

• Interior and exterior wooden doors with standard mortise cutouts
• Metal doors in residential and commercial buildings
• Doors requiring left-hand lever operation and keyed locking
• Retrofit projects replacing existing 72/55 mm mortise locks

When it may not be suitable

This lock is not suitable for doors that require right-hand orientation or for installations with non-standard backset/center distances. It is a mechanical mortise lock and does not include electronic access control features, so it will not meet requirements where remote or audit-capable locking is needed.

Key specifications

• Type: mortise lock with lever and keyed deadbolt
• Backset / center distance: 72/55 mm
• Handing: left-hand configuration
• Suitable door materials: wood, metal
• Operation: mechanical key cylinder and lever handle

How to use

Install the lock into a compatible mortise cutout with 72/55 mm center distance, ensuring correct left-hand orientation before fixing the case and strike plate. Use the lever to retract the latch for normal entry and turn the key to operate the deadbolt for secure locking. Periodically check alignment of the strike plate and lubricate the keyed cylinder and moving parts with a suitable lock lubricant to maintain smooth operation.

What to consider before purchase

• Verify door handing to confirm left-hand compatibility
• Measure backset/center distance to ensure 72/55 mm fit
• Confirm door thickness and material for compatible installation
• Decide whether a mechanical keyed lock meets security and access needs

Usage recommendations

For reliable performance, fit the lock into a correctly prepared mortise and use the manufacturer-recommended screws and strike plate. Maintain the cylinder and latch with occasional lubrication, and check fastening screws periodically to prevent loosening. If electronic access or master-key systems are required, consider a different model or additional components compatible with mechanical keyed locks.