It is 7x7ft. We have 10 chickens in there right now with 14' of roosts (on two staggered levels) In our climate, I would say 15 chickens would be comfortable in the coop; with 10 they are quite roomy. I think it will very with how much time they can be out in the winter months. But yeah, I would say 15ish (remember we have big birds).
Edited by BarredCometLaced - 10/24/15 at 10:15am