You could use NIC grids behind it, and some wood would probably work to block it. You could probably find some that fit at Home depot or Lowe'sHello again Bunny people! I am trying to eventually get to a point that my Rabbi just free roams my house like a dog, but my problem that I am having is when I bring her out she really likes to run under my couch, and chew on the wall behind it. This is obviously something that is not acceptable, but I can't really get her to stop going back there. Does anyone know of a product that is basically a 6 or 7 inch fence that could just block of the underneath of my couch? I have tried to find one but with no luck.