I have an open gap in the back of my kitchen cabinet drawer area that I want to seal up with a panel since there is a musty draft from the exposed old masonry back there. I also want to keep rodents out. I have some thin wood panels that I can cut up to put back there but I don't know how I would attach it since I would not be able to get to it from behind and only can push it up through the cavity.
It's also hard to get a larger piece of wood back there since the rails go almost to the back and there isn't a lot of room to maneuver.
Should I cut an 1/8" thick panel of wood exactly to size, bend it in there somehow and then attach it with something - maybe some sort of thing that lets me nail it into the side somehow?
I'm tempted to just use some thin foam - but not sure how resistant that would be to rodents.