I bought this to use as a chicken coop https://www.costco.com/Lucky-Dog-Bla...100327100.html In my area we have coyotes, raccoons, bobcats etc. I am going to set this up within a fenced area. I am thinking it would be a good idea to make a pad of at least 6" of gravel underneath that extends out 1 foot on all sides (the gravel would be enclosed by landscape timbers (width x height = 5" x 8)." I can dig down if more depth for gravel is needed. Would putting hardware cloth across the bottom of the cage be overkill? I want to prevent anything from digging up from underneath. The roof is just the tarp so I will need to use hardware cloth or something so no critters can climb up sides and get in underneath the tarp. The spaces between the wires are 4" x 2" so I am thinking it would be a good idea to add a few feet of chicken wire around the bottom perimeter to keep raccoon hands out). I will be building a wooden chicken house inside that will likely be three feet off the ground so the chickens can use the whole footprint of the kennel for picking, dust baths and other chicken activities. Greatly appreciate any advice/suggestions. I'm planning on having 3 to 6 hens.