The last couple of years, I've had wonderful, free trellises at my disposal. When we bought our current place, the windows and french doors all had either wooden or wood grained plastic inserts that simulated "panes" on an otherwise full sized window. We much preferred the look with no panes, so we threw those grids in the shed. Turns out, they make fantastic trellises. The long one from the french door was perfect rigged into an "A" frame between my two cherry tomatoes in containers. The others used either vertically or horizontally were perfect for peas, cukes, etc. Anyway, most of that stuff had begun to degrade by the end of last season, so I need some new trellises. I haven't been able to find the same type of material either on line or in stores, and my guess is that they probably wouldn't be cost effective anyway.
So where do I turn. I'm looking for sturdy, CHEAP, trellises. I'm a big fan of re-purposing other materials, especially when I can do it on the cheap.