This run works perfect for us! The only size available was the largest size, but for our ten chickens and rooster it is perfect. The frame went up super easy. The fencing has to be attached by zip ties which we definitely were not supplied enough of. And the fencing isn’t the strongest quality. Other reviews claimed they weren’t provided enough fencing, but we built this according to the instructions and had plenty left over. We ended up securing another type of fencing around the bottom for critters, but it’s been three months and so far so good.