Gil, Rockler Woodworking and Hardware
http://www.rockler.com has Traditional cane and Paper cane. Modern Open Weave 18' wide $.40 linear inch, 24" wide $.50 linear inch, Conventional weave, 12" wide $.29, 14" wide $.33, 18" wide $.50, Modern Closed Weave, 18" wide $.35, 24" wide $.48, and Paper Cane 24" wide $.69 linear inch. All are linear inch prices. They also have it in 50 foot rolls.
Traditional cane is made from the outer bark of the ratan palm, a climbing vine.
Paper cane shouldn't be used for seating purposes.
Good luck