I decided to put my coop in the corner of my garage. It is about 8'×15'. We put in two large windows. My son, age 10, and two daughters helped me with all the work. Well...I had to enlist in the help of one of my husbands buddies for the ceiling. I used old barn wood that was given to me for the outside walls and doors. I am putting in a separate room with its own nest boxes and pop door. I did insulate the two exterior walls. Next spring I will finish the separate room and roosts. ( I just have temporary roosts in now) I am also going to put up two covered runs. Can't wait for spring!