Re: Gap between Framsta panels and wall - how to attach them
Welcome to IKEAFANS, Level.
The obvious first choice would be to remove the skirt board where the Besta unit will be, so it could go up against the wall.
If you can't do that, how about attaching a board (the equivalent of a 2x3 or 2x4) to the wall in the location where the small Framsta mounting brackets will go? This will give them the same distance from the wall that the Betsa unit has because of the skirt boards.
Find out how you can get a piece of Chuck.
Just taking my inner IKEA geek out for a walk.