This is not my design, but something I found on Google sketchup: http://sketchup.google.com/3dwarehouse/details?mid=8c67c9f64d4b078e763d2bb88bc27e17 I haven't decided yet where I'm going to put my chickens or if I'm going to still try and do a portable coop, but if I don't I like that design. I had posted another thread in which I was told an open-air coop may not work when it's cold in my climate, but I wonder if a coop like that would be feasible? It looks like I could close it up tighter when it's snowy, but in the summer just leave the inner door open all the time. I would put more ventilation in the inner part, and maybe close up the storage area so it could be used for a broody hen and chicks. The coldest it ever really gets here is -10, and it doesn't get that cold often. We do have a few weeks of snow at a time some years, though other years we haven't had any snow at all. Anyway, mostly wondering if that design would be practical with a few modifications. I think in that actual design it's meant as the run, but we have 1.4 acres for the chickens to run around on and hopefully we will figure out some way to have them on a rotational pasture system. Whatever we decide, they should have lots of foraging and free-range space during the day. I'm thinking maybe 6'x8' for the coop and then maybe an extra 4' for the storage part. I have 12 chicks coming (including three bantams), but they're unsexed and I expect to only have 4-6 layers plus the bantams next fall. I figure the most we'd ever have is maybe 10 layers, and that would be way overkill so only if we really enjoyed having chickens. Thanks!