We've probably got the most unusual "chicken coop". We converted the Boot when the kids grew out of it. Its made of fibreglass - we've had no redmite in it in two years. 14 of the girls sleep in there, the bantams up top and the large fowl at the bottom. The Dog Kennel doubles up as an isolation pen and its where we put new chooks for a week or two so that they integrate into the flock without fighting.