When calculating the dimensions of a coop, do you include the entire square footage, outside run + inside shelter area, when determining how many chickens you can have? I'm actually trying to figure out if my exsisting coop is big enough for the chickens that I have. Also, I would like to have my bantams in a separate coop. My real question is, if I have enough square footage of outdoor fenced run area, how large does my enclosed shelter need to be? I have a really cute dog house, with a rooftop porch, and would like to use it for my chickens. I just know that they can't technically live in a dog house, only retreat to that space to lay eggs or seek shelter from the weather. Would this be okay, as long as their run is plenty big enough and equipped with roosts and perhaps a covered roof area?