Just started with chickens. A friend had some chickens that he was no longer able to take care of and was going to kill them. They were all young birds and good layers so another friend and I spit them up and took them. Me being me had to build a chicken palace for mine (anything worth doing is worth rediculously overdoing). I started with an old 4'x8' trailer I had laying around. Built a 4'x6' coop on the front. It is fully insulated with 2' hard insulation (I live in Idaho and winters can be harsh). I used a couple of old storm windows to make the door (figure to point it toward the north in the summer and south in the winter). I has laying boxes that I can slide out to minimized heat loss in the winter, and solar powered ventilation to keep it cooler in the summer and a tiled floor for easy cleaning. I then added 6' to the back of the trailer (yes I had to move the axel) and built a 4'x8' enclosed pen area there. It has a ramp out the back for free ranging or access to additional pen area and a ramp down to allow access to another pen area under the upper pen area (yup a two story pen). It is now happily occupied by an Araucana rooster, two Araucana hens, three White leghorn hens and one Production red hen. They currently have access to part of my dog run that has become infested with ear wigs. They are happily digging them up and taking care of that issue for me beside burying me in eggs (did I mention they were good layers lol). Everyone told me the stress of the move would cause them to stop laying for a few days, guess no one told the chickens. We are getting a generous supply (usually about 4 a day) of white, brown, green and blue eggs.