Many permaculture people use polypipe to build dome shaped Permaculture Chicken tractors. These dome shaped constructions certainly required a little bit more work but as mobile chicken coops they are light enough for one or two people to move and drag around the garden with chickens intact. They don’t rot and if you decide you don’t need the structure anymore – you can cannibalize the parts for other purposes. Using mobile chicken tractors are discussed in Geoff Lawton’s “Establishing a Food Forest” DVD where the chicken tractors were used to manure a field and moved incrementally and a food forest was sown behind it. A wonderful idea with minimal effort. This polypipe and star picket structure supports a climbing vine.