The best thing about coops is the chickens don't care what they look like, and you can add on and build whatever you want. They are a fun thing to build with whatever you have. Here's my old wood shed built in three 8 foot sections, shingled roof for two rows stacked lengthwise. When I aquired chickens a few years ago, I used one section for their "house". Later I added a second outdoor cage / nesting box. They are free range all day, and only go into the small raised part with nesting box at night. It is fortified and built with 2 X 4's and a racoon proof double latching, gravity, overlaping door system. Light on timer. The old truck cap on the ground has chicken wire ends, and is where they hang out on rainy days or when the snow is deep until I get an area cleaned up for them. The small coop holds 8 comfortably overnight, since they like to huddle together anyway. The piece of gray Ondura roofing (on the truck cap) is the front cover that we put on at night. It has steps to adjust the height across the front for temperature. The corrugated material allows good ventillation when closed tight, yet stops drafts. a piece of vinyl flooring scrap is the cleanable floor. The floor and roof is insulated. No, the satellite dish isn't for the chickens. But I can use it if I'm sent to the center "dog house". That's fully insulated with operable RV windows. The closed in middle section with old RV door can be used now for brooding, kittening, baby goats, or piglets until they are big enough to go out. The old truck cap on the far left is going to a neighbor when I get it done for his incubators, and hatching equipment. I'm setting the fridge up for a controlled 55 to 60* for storage of hatching eggs, and running water. He hatches 3 to 4 hundred at a time, and sells ducks, quail, pheasant, and any chicken breed you can imagine. He had his own body shop business for years, and his bird hobby has taken now over.He is doing well with it.