technically 8 (on GB standards), but not infrequently more pile in, and the Egg Marketing Inspector assures me that if they have a free choice (as they do here) it does not matter if more are in overnight. (I assume you realize these coops are only for sleeping and laying in? you couldn't leave them locked in there if you e.g. went away for a few days)Great info
How many large fowl does it hold comfortably?