Nice looking framework! Caution: If you get hail, reconsider the poly roof. I am close to finishing my coop and had put up the clear poly (Palruf sold by both HD and Lowes) thinking it would bring in lots of light - which it does. I was told it would hold up well, but after 3 hailstorms this spring, I've had to patch it with white duct tape in several places. Have figured out that since I live in an area that seems to be getting more hailstorms each passing year, that I'm going to have to replace it. I also liked the Palruf, cuz due to the corrugation, it allowed me to create a "passive" ventilation system - works great - covered the studs on top under the corrugation with hardware cloth and screen cloth (to keep the wasps out). Alas, after I finish my run, I'm going to replace it with a more conventional roof or go the metal roof way...Gail