Hi, I am in the process of building my chicken run and need advice. As of now it is all dirt, and after reading many posts I think I will add sand/gravel to it. My question, however, is if I need to line the entire bottom of it with hardware cloth to keep out predators. We have skunks, raccoons, and stray cats in our area. At the very least I will be burying the wire a foot down around the edges, but is it overkill to line the whole floor? The run is 8 x 20 feet, so that requires a lot of wire. Thanks for the advice!