There are no wires or anything running through the sidewalls, and I can't think of anything anywhere near that area that would create any issues. I seriously doubt a couple screws will harm the integrity of the wall, but I don't work in the warranty division, so I can't say for sure if you would be voiding the warranty or something. I personally would think as long as you make sure the screws used don't go all the way through the wall, you shouldn't have any problems. We screw the dinettes, cabinets and other things to the walls all the time. I can give you dimensions or anything else you ask for regarding this if you choose to go through with it.