I call this my eco-coop because it was built mostly from reclaimed lumber that was on it's way to the landfill. I posted on facebook and freecycle asking for free used lumber and got enough to build my coop and run. I bought two 8 foot 2x4s and the hardware like nails, screws, fence, etc but the rest of the wood was from an old wooden fence and scrap wood that was given to me. The corrugated roof was even free. Yes, I put chicken wire on top of the rabbit fence as well to keep predators out.