We currently have a smallish tractor but we've fallen in love with our chickens and want to expand the flock. We've also discovered some of the pitfalls of the tractor and want something much, much better I've attached a picture of my rough sketch. Husband is going to translate it into a working model in SketchUp, so I'll be able to modify anything that doesn't look quite right. We are building it behind our current barn, and extending the barn roof to cover the new coop. The new coop won't be attached/integrated into the barn extension though, just in case we ever want to change/dismantle/etc. The coop will be ~6" off the barn wall, and I plan on drilling some good ventilation holes in that wall (as it will be pretty protected from direct wind). For reference, we currently have 3 chickens but want to expand to 10-12 hens - no roos here!