upholstrey help

The upholstery shop told me to take listing wire (basically bailing wire) and run multiple strips across the springs and zip tie them down to spread the weight more evenly across the springs.

I did it and 6 months later I noticed something poking up through the front cover. I felt it and it felt like metal so I assumed I had accidentally left a small piece of a hog ring in there. I pulled the seat out and it turns out the listing wire worked its way up through the foam and poked a hole right in the middle of my new seat cover. There were also 3 other wires that were making their way through the foam as well. The weight from sitting on the seat just slowly worked the wires through.

If you're going to do this I'd suggest bending a loop at the end of the wires so they can't work their way through the foam and mess up the cover.