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Frequently Asked Questions
Why is locking a glass door different?
There is no stile to house a lock body and no frame to receive a bolt.
Every solution in this range works around that absence.
Patch locks integrate the lock into the clamping fitting.
Other locks sit in a cut-out made in the glass itself.
The bolt then throws into the floor, the head or the opposing leaf.
None of those are how a framed door works.
Why does the cut-out matter so much?
Because it is fixed at fabrication and cannot be changed afterwards.
Size, position and shape are all determined before toughening.
Changing to a different lock pattern usually means a different cut-out.
That means a new pane rather than new hardware.
Standardising on a hardware range before ordering glass avoids it.
It is the single most expensive mistake on a glass door project.
What does the bolt engage?
The floor, the head, or a keep on the opposing leaf.
In a pair of glass doors there is no frame between them.
Floor sockets are the most common answer.
They collect dirt and grit in an entrance position.
Dust-excluding sockets are worth specifying for that reason.
A socket that has filled with debris stops the door locking at all.
Can a glass entrance door be locked shut?
Not if it is on an escape route in a way that prevents escape.
A door on an escape route must open in the direction of travel without a key.
A locked glass entrance with the key elsewhere is a serious hazard.
Escape hardware exists specifically to resolve this.
Requirements differ between markets and are strictly enforced.
The local rule governs when and whether a door may be locked at all.
Why has my lock stopped engaging?
The door has probably settled as the pivot or closer wore.
A glass door has no frame to stiffen it.
Alignment shifts more readily than on a framed door.
A lock that engaged perfectly on installation can drift out of line.
Adjusting the pivot or closer usually restores it.
Forcing the lock instead damages both the lock and the pane.
Are these locks as secure as a framed door lock?
Security is limited by the glass rather than by the lock.
A pane can be broken regardless of how good the lock is.
Laminated glass resists attack far better than toughened alone.
Locks are frequently specified for control rather than for security.
Where genuine attack resistance is required, the glazing specification matters more.
Insurance requirements for glazed entrances differ by market and by risk.
What maintenance do they need?
Keeping the socket clear and the alignment correct.
Floor sockets fill with grit and stop accepting the bolt.
Pivot and closer adjustment keeps the bolt meeting the keep.
Cylinder lubrication follows normal lock practice.
Loose patch fixings should be re-torqued to specification rather than guessed.
Checking alignment periodically catches drift before the lock stops working.