I am building my own coop and want it to last. I know a lot of people use dirt floors inside the coop but was wondering if anyone had any input on using 12in or 16in patio stones for the foundation/slab? My idea is to bury concrete blocks around the perimeter of the stones, lay mesh under the patio stones then either add a little quickcrete to make it more solid or leave the just the way they are for drainage purposes. Wooden building, shavings for the floor covering. Thinking 6x6. It is for 6 chickens. 3 standard 3 bantams.