I just had a nice little coop built and am planning to have the run built soon (chicks are 5 weeks.) I did not have hardware cloth installed on the bottom of the coop. We live in a downtown area (not in the boondocks somewhere) not sure if that matters. I know it's probobly better to do it, but, it would be an added cost, of course, and a pain to add it to the coop as it is finished already. That said, if it's a common problem to have predators come in from the bottom, I want to do it. comments? personal experiences?