Okay, so I'm not losing my mind after all! They put the dimensions for the big coop in the small coop's description! Well, how was I, a completely newbie to chicken keeping to know that? I took them at their word. Now I'm really upset. We've been planning on how to do a coop and run for MONTHS now, and were thrilled to find this coop, and, to my untutored eye, it appeared to be the size I wanted for 3-4 banties. I'll look at it when we get it, and knock out the wall to the nest box if we have to, but hubby is getting fed up (and I can't blame him) with all this "will this work or not?" when it comes to chickens. Please do remember the chickens will ONLY be in the coop at night, and out in their run for the rest of the time. From dark until light is the only time they'll be in there. And the door will NEVER be closed. There are air vents on the back if you read the description. I saw those dimensions, and I trusted them to be telling the truth! I'm fit to be tied.