In article k.net, "Daniel B. Martin" wrote:
... concrete reinforcing wire with the 6x6 openings ...

Having tried various methods over the years, I've found the concrete
reinforcing wire works best for me.

That's what I used last year, with good results. Be sure to buy/borrow a bolt
cutter. I used lineman pliers on one cage, then went and bought the bolt
cutter.

-don