I use a pipe bender to put three 60 degree bends in 10′ sections of steel conduit. These nicely span my 4′ raised beds. I mount the hoops on 2’lengths of 3/8″ rebar, pounded halfway into the earth. The hoops are spaced at 4′ intervals, and all is covered with lengths of 10′ wide UV-blocker treated polyethylene. The sides of the poly cover are weighted down with large rocks.