I plan to have around 20 chickens (in the future). I've read a lot of different resources on coop size and space and all that, but it just kinda makes my head spin a bit! I'd get 5 or 6 chickens the first year, then same for the next 3 years until I have around 20. I say 5 or 6 because I figure I'll probably lose a couple along the way, hopefully not though. So would an 8' x 10' coop be enough for 20 chickens? I plan to attach a much larger run as well (size undetermined right now). Should I go bigger with the coop? If my flock were to "accidentally" grow a little larger than 20 birds, would an 8' x 10' coop no longer be enough? I plan to mount the nest boxes on the outside of the coop so it doesn't take up space inside! The nest boxes would go on one of the 8 ft sides and the roosts would be on the other 8 ft side, so there should be plenty of roosting space. I will probably go with a ladder-type roosting area. Large doors on the back 10 ft side for easy cleaning. I would keep a dust bin for them to bathe in inside the coop also, and an extra feeder and waterer. I've read this article: https://www.backyardchickens.com/a/how-much-room-do-chickens-need and other similar articles, I just sort of need confirmation I guess! lol Thank you in advance!