I am about to embark on my build this week and weekend. I just got a 7'x3'x3' shipping crate but plan to make it 7'Lx5'Wx at least 4' maybe 5' high. Right now I have 10 birds but I think at least one is a roo and we really don't want to keep a roo. But on to my questions. 1. I plan to raise it off the ground and was thinking 24-30" up. Is this a good height or is there a better one(I am in SW PA). 2. Nest boxes, I was thinking 3 on the outside of the coop but wasn't quite sure how big to make each one? Was leaning towards 12"x12" or 14"x14". I plan to have one side of the coop open as a door for cleaning and will put in at least one window with some other venalation. I also need to make it to stay warm in the winter. I think that is it for now. Will post pics as it progresses and I need to hurry as they are outgrowning the playpan in the garage now.