If you go to your local extension office, or a USDA web page, you should be able to get a map which shows your property and the estimated AU it can sustain. AU, of course, equals an "Animal Unit". I like the conservative numbers (based on take half/leave half management), 100 chickens = 1 AU...
Yes, I just threw it together with Paint.net while I was posting - surprisingly robust for a free program that started as a college project. If I was serious, I'd use Sketch-up.
Its clear that you are giving this a lot of thought and doing tons of research. We REALLY appreciate that. I'm...
Exactly so. I'm going to keep thinking on it. My last effort at a mobile grow out pen was a bust, and the rabbits are rapidly taking over the grow out pen I attached to/constructed inside the barn.
Honestly, I'd lose the focus on square/rectangular walls and try to replace the whole "run" section of the build with halved cattle/livestock panels to further reduce weight. An almost 8' length makes an arch 5' wide, 2 1/2' tall. Two sections provide almost exactly 8' in length, with a bit of...
I don't. I have a much different climate than you, and a much larger flock.
My inclination is a hoop coop-based tractor for weight and space efficiency. But its entirely theoretical, as I have no practical experience with them. My birds free range 1.75 acres of "pasture" plus roughly 3 of...