We purchased 8 chicks, and they are growing much faster than expected. We live on the marsh, where there are many predators - raccoons, hawks, bobcats, coyotes, other dogs, and cats. As much as we want to free range, we do not wish to be "winner, winner, chicken dinner" for all of the animal kingdom. Enter the 18' x 10' run. It was a great price, so we ordered it, and it arrived quickly from the seller. We started assembling it, only to discover a key part was missing. I contacted the seller and they dispatched it right away. The seller is amazing and I would do business with them again. It is roomy and perfect for my 7 hens and one rooster. We will be adding a proper coop to the end with no door. Currently, what they are in can easily be placed in the coop to keep them safe at night.