I am in the middle of building a wine rack in between my kitchen cupboard and the wall. As the wall was really uneven I added a sheet of plasterboard and filed the gap between the plasterboard and the wall with Soudal expanding foam - this way the space for the shelves was all the same width so I could cut all the shelves for the wine rack evenly.
The shelves are 10.5 cm wide from cupboard to wall and are supported at the back of the rack but I am not sure how to support them at the front. There is no room for manoeuvre to get a screwdriver or a a drill and ideally I don't want any fixings showing. I would also prefer to be able to remove the shelves easily if needed. The only solution I can think of is to drill some holes in the cupboard and thread some really long screws / fixings through the holes and whack these into the plasterboard / foam, then just rest the front of the shelves on top of the fixings. Is this viable and if so what sort of screw / fixings would I need ? Any advice much appreciated, thanks.