My new coop. I built this back in March of this year ('13) out of 1/2 inch oak plywood that I got for $22 per 4x8 sheet!! I painted it red, gold, and aqua for an island feel. It is enclosed in a 225 square foot area created by my master bedroom which juts out over the backyard. I framed in the areas between the support posts and covered it with hardware cloth. As you can see, the roof is also oak plywood. Since I have complete coverage from the elements, there was no need for any typical roofing. There are three nest boxes which is plenty for my nine chickens.