How to ensure our sliding kitchen door is ‘close-fitting’?

Hi Yes you can adjust the bottom guide which then should stop it swinging out.. Regarding the close fit, no sliding door is really close fit but you could put a side pelmet on the side of the door to make it a closer fit.. Hope this helps..

I expect one is talking about bi/tri-folding sliding doors?! They must be fitted exactly ----> millimetrically vertically parallel both ends. I expect the doors have been fitted in a warped format (twisted) If my assumption above be correct, then I assume the 5 point locking system does not align correctly. Try pushing the handle up to engage locking system - if the key does not turn, then the whole system (frame) requires adjusting. Normally its miss-alignment of catch engagument which fails - along with the alingment of the 5 point security locking system. I believe (guess) the doors have been fitted warped (twisted) I also expect your doors have been finished to (plastered in to framework?! Solution : Use a multi tool to remove a 10mm rip of plasterboard from internal finished verticals: access frame fittings and remove (concealed by cover caps). One could drill new fixing anchors or inject existing with resin, allow to cure then re-drill. These doors require a perfectly "looked after" STABILLA 6' LEVEL - BUBBLE PERFECTLY MANISCUCALLY CENTRALIZED!!! THEY CANNOT BE FITTED WITH A 4' LEVEL!!! I hope my input helps you! Kindest Regards, George Gamper