Wicker webbing is used when a groove surrounds the caned area. On projects where holes are drilled around the outside edges of the area to be caned, unwoven chair cane must be used. Both machine pre-woven cane webbing and unwoven chair cane are made from the same material. Allow one inch overlap of woven cane, measuring outside of groove from side to side at widest point. The caning is sold per inch, please specify how many inches you need. There is a 12 inch minimum.