Has anyone ever used high tensile wire for the top cable for a hopyard trellis. That stuff is strong and has weight/strength capacity numbers that seem to be plenty. What if you doubled it up for more capacity? It's allot cheaper than cable.
Yeah, I used it between the corner posts of a gazebo/shade arbor for several years. The posts were about 15 feet apart, and it supported the weight of a 15 ft section of overgrown hops that were trellised with 20-25 pieces of vertical twine tied to the wire between the posts. Wall o' hops. No problem. There was minimal sag. I'm always a fan of over-engineering, so doubling up and joining the wire by galvanized wire clamps or cable seals, or just some galvanized twisty ties might be a good idea