Hi I am building my first coop and was wondering what is a good size for the chickens door. The hen house is about 4x4x4 feet . (see bryans coop, that is what I am imitating) And also, how many chickens would you recomend for the area given. I am not yet sure how big the run will be, but I am thinking about 10'x10'. maybe. Thanks for any help guys Trevor oh yeah, I live in GA where the temps barely get into the teens in the winter. (sometimes) How far should I go to keep them warm during the cold.........month.