So ive gotten started (finally)on the rebuilding of my old chicken coop. Its small and wont have enough space for the amount of chickens I want. MY long term goal is 20 chickens. Heres the coop thats been in my backyard and has been a storage shed for the last several years. This is the back side of it facing my dog yard And heres a veiw from another side And the view from the front Heres the idea of how i want it to look sorry if the image is a little small The orginal measurements on the old coop are 3ft10x7ft10x6f6 at the shortest and 8ft2 at its tallest I want to extend it to 13ft10x7ft10x8ft2 if i did my math correctly the old coop is 21 square feet and I want to add an additional 72feet to it so that according to the rule of 4ft per chicken thatll ought to give me enough room. Also keep in mind that these will be free ranging chickens and will only be put up at night. I want my coop to be able to protect them from the many predators around my place as we do have cats,owls,hawks,snakes roaming around the place. I will be putting laying boxes in as well but not sure on the exact setup Im thinking close to the bottom so no eggs or baby chicks fall out. Im also going to extend the door I already have so messes are easier to clean up. Also the coop is going to be wood panneling all around too. I cant think of anything else I might need to add any ideas? Is the coop too small?Any suggestions are welcomed.