I've been working with a teeny little 10x10 coop for a year now. I never get to shut the door, because I have litk 40 chickens, so I let them have the run of the barn. But today i'm finally getting a coop built! Yay. A friend is coming and putting a wall o' chicken wire across the back side of the barn so I can finally segregate the big girls from the little ones. So i'll have a 20x15 or something, and the 10x10. The little coop has a covered run, the bog one doesn't. So I can let the big girls out in the fenced area and the babies can stay safe under shelter. Now I need another ladder for roosting. And more nest boxes.