As you can see from the pictures below the exising walls of our coop are flimsy and not so strong. I believe we need to fully cover them with something. Would OSB be ok for this purpose? Also, I know OSB sitting right on the ground will more than likely make it's life usage not last so long, is their something I can do so it won't have to sit right on the ground? I thought of something weird and I am not good at coming up with great ideas when it comes to any sort of building plans but could I go around the bottom with buried concrete blocks, run an apron of wire under the blocks across the floor from block-block with dirt over top the wire and then set each piece of OSB on these concrete blocks and attach them to the existing frame? Does that sound weird or make sense? Any other ideas? What would you personally do to these walls to make the inside of your coop predator proof? Some parts of the wall is pretty thin, I could very easily hit it not so hard with a hammer and it would go through, so something needs to be done for their warmth and safety.