How strong does the frame for the Cable Railing need to be?
We usually try to set tension of 300 to 500 lbs. on our installations. If your end posts are only 1/2″ thick x 2″ deep and 36″ high, steel plate will bend with only 300 lbs. of load. When you double up on the ends, say two steel posts separated by 3″ and one or two welded connectors spaced equally, then the load handling increases substantially. Use a 3×3 or 4×4 steel post and we can play music on the strands.
