Yale Lockmaster PL18 45mm 3 Hook 20mm Square End Multipoint Door Lock

The Yale Lockmaster PL18 45mm 3 Hook 20mm Square End Multipoint Door Lock delivers dependable security and smooth operation, engineered to suit a wide range of composite and timber entrance doors. Built by Lockmaster, a trusted brand in the multipoint locking industry, this replacement lock features a euro-cylinder configuration with a centre-positioned lock box that combines both latch and hook locking for enhanced protection. The 45mm backset ensures compatibility with many existing door preparations, while the dual-spindle layout with 92/62mm (PZ) centres provide a reliable lift-lever functionality for everyday ease of use. Its 20mm square-end faceplate creates a clean and precise fit, supported by an overall length of 2200mm to accommodate standard door sizes.

This Lockmaster PL18 model includes two additional hooks, giving you a three-hook locking system designed to secure the door firmly into the frame. The hook-to-hook measurement of 1485mm, along with the top hook to centre at 720mm and the bottom hook to centre at 765mm, ensures the lock aligns correctly with most modern door setups. As this version is not extendable, the fixed design provides consistent performance and structural integrity. Each detail—from the faceplate size to the locking box position—has been engineered for strength, ease of installation, and long-term reliability.

To keep your new multipoint lock functioning at its best, occasional maintenance is recommended. Lubricating the gearbox and moving components with GT85 helps maintain smooth engagement, reduce wear, and prolong the lifespan of the mechanism. Regular cleaning of the faceplate and attention to the cylinder will also ensure consistent performance over time.

When upgrading a multipoint door lock, it’s an ideal moment to consider improving overall door security and appearance. Pairing this unit with a high-security 3-star door cylinder is a simple and effective way to enhance protection against snapping, drilling, and picking. You can also explore our door handles range, giving your entrance a refreshed, stylish finish that complements your new lock while improving day-to-day usability.

If you need guidance on how to identify or measure a multipoint door lock, you can visit our detailed blog here: https://www.mbdiy.co.uk/blog/how-to/how-to-identify-a-multipoint-door-lock/

Alternatively contact our sales team who will be happy to help.