Maybe a bit late, but since anyone reading this is likely planning next years garden, so just in case TSC is out of stock ... In spring 2011 I asked everywhere for cattle panels (& ended up using concrete reinforcing wire - half the length of the cattle panels) and heard that you can get them from Menonite farmers. My helpful TSC fella said to ask any menonite & they would send you along to someone who has them. Thanks Zuni for posting their availability... can't wait to try one out this year (:

...how is it going?

Ok. In order for the arch to be higher, the tanks would need to be much closer together if you put them on the inside of the panel. They might be hard to get between, to weed, etc. So I would suggest you put them on the outside of the arch.(one on each side). I don't know if you considered that already as the option and pretty much have the tanks where you want them, but it looks like you wouldn't be able to weed the tank on the right, if it is right near the fencing. Have you put any drainage holes in the bottoms of these tanks? Don't put too many in. I was using about 9 food-grade stock tanks and put waaaay too many holes in them and the water would drain out much too soon, and I have to water them about every other day......which is a drag. I've tried to plug some of the holes and they're doing a big better. But mine are up on some cement blocks, and not right on the ground. I love trellis gardening. I grow (in the ground) cucumbers on both sides of the trellis and they love it. I also use my kids old swing set with fencing up one side and over it and grow winter squash, and it seems to love growing upwards.

They are actually fencing panels. You can get them at Tractor Supply--they are made to enclose livestock. The panel is about 16 feet long by a little over 4 feet tall. If you bend the panel halfway you can make an arch, and you can also rig them up horizontally. Both orientations work fine. Each panel is about 20 dollars, and you also need some t-posts ( a fence post that in cross section is a t), and some clips to fasten to panel to the posts. You can get all these supplies at tractor supply. You can, I suppose, use heavy duty staples to attach the panel to a wooden post, but it's much less work to use the t posts. If you're gonna set up a bunch of these, you might want to get a t-post driver--it's a heavy hollow metal tube with handles that make driving these posts really easy, much easier than a sledge hammer. Here's the panel I used: http://www.tractorsupply.com/en/store/feedlot-panel-cattle-16-ft-l-x-50-in-h here are the t posts I used (they are available in different lengths as well) http://www.tractorsupply.com/en/store/studded-t-post-6-ft-125-lb-per-foot and here's the post driver: http://www.tractorsupply.com/en/store/deluxe-post-driver Somewhat pricey when you add it up, but it's a one time expense: these items will probably last for many years, and next year when you go to start your garden the trellises will already be in place. And if you get tired of vegetable gardening, these would make a great support for climbing flowering vines or roses.