My husband built our coop using the pallets bricks were on when delivered here. We used 3 for flooring bases, then 3 pallets were used as the frame of the building, with 2x4's binding them together, creating the roofing framework. He had this done in just a couple hours.
Now we realize the chickens would prefer their house to be raised at least 2 feet above the ground. This needs to be re-worked, since my chickens don't seem to feel secure in this coop.(he used some construction plastic to wrap over the chickenwire walls.)