Use our #11 gauge no-sag zig zag springs for your back applications. These springs are 1-3/4 inches wide with a distance between turns of 7/8 inch. The 11-gauge wire has a diameter of 0.1180 to 0.1200 inches. Sinuous springs attach directly to the frame of your furniture. You can cut these springs down to the size you need with bolt cutters. Made of premium sinuous wire made in USA. This item is sold in 140 ft. rolls.