Coop being delivered in a month(see pic) Want to do a boxed out item 4 pad for it. Any problems with having an item 4 floor in the run? Planned on adding dirt and other goodies for them to scratch around in. Making it 4" thick with a layer of gravel underneath for drainage as well as a deep layer of chain link as a predator barrier. Thoughts or issues you see with an item 4 floor??? Thanks everyone!!!