It's in Backyard Poultry magazine. I like their idea of the coop floor. They laid hardware cloth, then railroad ties (pressure treated would work) Then wrapped the wire up the side of the timbers and roofing nailed it. That's got to be a good digger deterrent. Very pretty coop too. Mine's in the planning stage. GF and a friend keep me well supplied but I think they are calling my hand with a dozen half grown chicks they feel I need. And they are right. Hope to have some Guineas soon too.