Sliding And Folding Doors
You’ve probably cottoned on to this already, but in case you just moved in or have been lucky so far …
Many of the more lunatic manufacturers of the folding sliding doors you sometimes find opening onto a rear garden, fit an ordinary euro-profile-cylinder to lock the lever that operates the top and bottom bolts of the folding hinge.
Of course, one day you forget you’ve left the key in the cylinder, open the doors, and snap. Your key gets broken off in the lock. And you’ve a gouge mark in your door.
Do something similar to what hotels used to do with their keys in the days before keycard/digital locks. Tie a large, very soft (you don’t want this breaking your glass) ball or something to the folding sliding door keys.



