by plumbbob »
Tue Oct 21, 2008 12:17 am
Ah, tricky. It depends on the gap between the plasterboard and the wall. Generally, I just increase the length of screw to accommodate the extra depth of plaster. Don't overtighten so as to avoid crushing the drywall.
When you have fixed all the cupboards just before you make the final adjustments, run a bead of clear silicone down the cupboard edge so as to stick it to the wall. That way, they will stay on the wall even if the screws were removed!