So.. I wanted a light weight, easy to move run. I thought I would try PVC pipe. Let me just say two words - Labor Intensive. But I am very happy with the results. This didn't happen without a lot of planning and using AutoCAD. I learned a lot about PVC. One unexpected result is the "Boing" factor. The center posts are being lifted off the ground by the hooped sides. The finished product is intended to keep the chickens in and the hawks out. I have not had any problem with ground predators during daylight hours. Stage 2 is applying the netting, which I hope you can help with. The Internet has dozens of sites and hundreds of products and I'm not really sure what I should buy. I think I need a 1" mesh with a 50Lb break strength but I'm not sure. I know that will hold a chicken in but I don't know if it will keep a Hawk out. Will a hawk try to slam through the netting or does the netting feel alien enough to it that it wont even try to get in? Do you have any experience with attaching the netting? I wanted to use some large Tie-Wraps in case I need to repair of replace any part of the frame or netting. Stage 3 will be a rolling Cart that fits through the 36 " doorway. I want it to contain water, feed, roosts and nesting boxes. That way I can move the PVC run to new locations and fresh grass plus I can easily maintain the cart by taking IT to the food and water supplies, cleaning it up and rolling it to the new location. At night the cart will go right into the coop and do the job there as well. Any help on the netting will be greatly appreciated.