that does look interesting, but my guess is they dont have to fight with bermuda grass.
I am with Drew. Trying to determine the best way to build raised beds, so that I can stop spending time pulling grass from my garden. I reused some available lumber here on the property to build a few a couple years ago, and its already starting to show issues with rot. Metal roofing material seems to be a common way and fairly time efficient, but with the prices now, I would need to find some reclaimed stuff. I have seen where folks built smaller ones from cardboard and chicken wire. As you can imagine, it didnt last more than a yr.
