My hoop tractor is almost done. The base is 8 ft. long 2x4s. The hoop is made with metal electrical conduit. Whole thing is covered with1/2" hardware cloth. There is a gull wing door in the side (as opposed to the end) of the coop. I can drag it by myself, or if there is an extra set of hands it is a breeze to lift and move. NOW, what is the best material for shade/ rain protection. A shade cloth isn't water proof, and wouldn't just a tarp concentrate the heat? (In Cali we have HOT summers.) What do y'all use in warm areas? And suggestions for the latch--I'm open to brilliant ideas. We have a 6' fence around the property but occasionally a possum finds its way in. I haven't seen any coons since the fence went up, but that doesn't mean they aren't able to get in. I'm thinking a coon could figure out bungee cords? So maybe one or two of those locking hook and eyes? What do you do? Thanks! Another question: Once the lil guys get used to the tractor, would they return to it at night if I decided to let them free range with my egg birds during the day? We will have too many with the meaties for everyone to go into the coop at night, which is why we are making the tractors. The meaties are red broilers and dark cornish, someone said the dozen dark cornish will need more room than an 8X8 tractor will afford them. Edited because apparently I am incapable of catching spelling mistakes before I hit "submit."