@ Beverly, another thing you could use for the uprights besides wood is steel fence posts (Tee Posts). They come in 5', 6', 7' and maybe 8' and you can purchase clips that attach the fence panels to the posts. You would need a fence post driver to drive them into the ground which you can probably rent and you wouldn't need any concrete. It may not appear quite as elegant as Becky's but the finished project could be painted with a good rust inhibiting spray paint and once covered with vines the arbor would look similar. If you can not find the livestock panels in your area you could use a heavy (steel) concrete reinforcement mesh as dirtdouphins said in another thread on this subject
(click here) but you would have to look at what's available to see if it would be strong enough to support the weight. The steel posts may tend to bend outwards some what because of the spring of the bent panel so you would have to over-bend the panel until it holds it's finished shape before you place it between the posts, this would be a trial and error method going a little further together each try until desired form is obtained. Even if you over bend it the clips would hold it to the posts.
