We've got 28 three-week old RIRs, straight run. I've got them in a homemade brooder w/ dividers that can be either 2'x2', 2'x4', or 2'x6'...right now they have 2'x4', but I'm opening it up to 2'x6' tonight. Reason being, I just kinda looked down there last night and, all of a sudden, it was like "HOLY COW! That's a lot of chicken in there!" Almost seems to have happened overnight, too.. Obviously we're noobs when it comes to chickens, but so far what we've determined is that they grow amazingly fast -- which brings me to my next question.... How big a coop should I build? We're planning to keep all the pullets and two cockerels, and everything else is going in the freezer. Obviously, all 28 are going to need to go into the coop for at least a little while. Oh, and clearly...this thing needs to get done SOON. Now, some folks say they only need 1.5sqft/bird, but that seems pretty ridiculously cramped... Other folks build spacious, fully insulated, four-star cottages for a handful of birds, which seems...unfeasible for a number of reasons like shortages of time, money, and inclination. Our coop will be inside an existing pole barn, in which the posts are set about 11' on-center. So, would 11'x11' (minus interior framing, nextboxes, blah blah blah) be enough to hold 28 birds at least until butchering day? If so...would 11'x11' be too big and cold if I butchered, say, 12 and left myself with only 16? I'm in central Kentucky, by the way.. It can be anywhere between 110 and -10, and we've been known to have 50+ degree temperature swings from one day to the next... Like, a high of 70 one day, down to 20 the next night. Thanks...love this board, btw.