Elemental Farms in Missouri built chickshaws and installed Best Nest Boxes to collect clean eggs. The design is available from Abundant Permaculture. The coop is built with 26" wheels. It is very light and easy to move. Air flows through the coop and provides a healthy environment for the hens. Elemental Farms runs 140 hens in two chickshaws. Enjoy their pictures!
Large nest box in pictures below.