As the title suggests I am about to start building a chicken coop. We are planning on getting 10-15 dorking chickens in the spring and I want to build a nice little coop for them. So far I have a design that is like a rectangular box on its side with a sloped roof. The dimensions are 24 in deep by 48 inches long and 36 to 48 inches high with a sloped roof. Is that big enough> The chickens will have a decently sized run that they will run around during the day, so the coop is just for laying and bed time. The lady who I am getting the chickens from has all her chickens in a tiny little chicken tractor is smaller then mine and has more chickens then mine, and she says her are very happy. And they seemed to be just that, but to me I think they need more. I am constructing the thing out of 2x2s and 1/2 inch plywood, and am hoping that I can put it on wheels and have it movable, but I fear the overall size of the thing and the 2x2s might mean moving it will likely break it......so I'll plya that part by ear I guess. So yeah, is that enough room for a potential 15 chickens? Also, how big do nesting boxes need to be?