I'm using a portion of our old barn for the coop, theres a 9x9 room that I can add a couple things too and make predator proof on the inside, however I'm going to make a ramp for them to get over the small concrete wall then cut a hole for a run outside. Trying to figure out the best/cheapest/easiest way to make a run.. right now we have 5 chickens coming, possibly 2-3 more. Any thoughts would be great. I have tons of old lumber in my barn, along with some aluminum roofing sheets. Would need to get hardware cloth/chicken wire.