A frameless glass door still needs real security. Modern glass door locks deliver it without ruining the clean look. Here is a practical guide to the main types.
Patch Locks
The most popular option — a patch lock clamps to the bottom corner of the glass and throws a bolt into a floor strike plate. With a euro-profile cylinder you get key operation from both sides. This is the standard for showroom and office entrances.
Corner Locks with Strike Patch
Where the door meets a sidelite (fixed glass panel), a corner lock bolts horizontally into a strike patch on the fixed glass — useful when the floor cannot be drilled.
Centre Locks
For sliding glass doors, centre-mounted locks with hook bolts secure the sliding panel to the fixed panel or jamb.
What Makes a Lock Secure?
- Cylinder quality: anti-pick pins and hardened cylinders resist tampering.
- Body material: SS-304 bodies do not corrode or weaken.
- Gasket grip: quality EPDM gaskets prevent the lock shifting on the glass.
Installation Tips
Glass for patch locks must be pre-cut with the correct notch before toughening — glass cannot be cut after tempering. Always share the lock's cutout drawing with your glass processor in advance.
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