So after some thought I have decided to slap together a small coop right away then go all in for the big coop. I want a 12x12 coop, but between time and finances I just don't think I can get it done by spring. So instead I will make a small coop quickly and much more cheaply and then slowly build the big one. I have been looking at designs. I found this one. https://www.backyardchickens.com/a/codybirds-page I like the thought of a quick a frame coop but yet still elevated for a sheltered run. My main question is, is there any reason the run underneath has to be slanted? I am no carpenter but have all the tools needed to build a shed. Can I have a 4x8 run underneath with straight walls with an a frame on top? I guess I don't see why not but didn't see one in the coops page. They are all straight up triangles.