Chicken Coop... Big/Cheap/Stong

My wife has gone nuts for chickens. I blame Pinterest. She wanted a coop for her birthday and some chickens... so here is how I built her the coop. The fenced in little yard part will be added later. It works out that one sheet will make the front and back from one sheet. The sides are one sheet and the roof and floor are one sheet. For a total of three sheets or plywood. Supplies: Three sheets of plywood. The walls are 3/8" ($14 a sheet. I should have gone thicker but this work...