My DH & I are about to build our first coop for the chicks we are getting. We've been discussing all sorts of designs and have settled on a chicken tractor. First it was an a-frame design - we decided that was too complicated for our limited carpentry skills. Then it was a design similar to this one: https://www.backyardchickens.com/web/viewblog.php?id=61-chicken-tractor Now I have another question: Does the coop/nesting part have to be raised? Or can it sit flat on the ground like this one: https://www.backyardchickens.com/web/viewblog.php?id=3402-Portable_Coop We're still debating how large to make the coop/run for our anticipated 6 RIRs. . Plus, DH tends to overbuild everything & make it all it 2x4's & 3/4" plywood. Like I'll be able to move something that heavy. I'm thinking 2x2's & 3/8 to 1/2" plywood is plenty enough.