Ron, are you talking about the white material they use on the "Router Workshop" TV series?
If you are, go to- http://oak-park.com/catalogue.html
Click on fences. This will show you the fences used on the TV show. Hope this helps. If not, let me know.
I just bought a 1 inch thick 24 X 30 inch piece of HDPE from NORVA Plastics in Tidewater VA. I got it from EBAY. Looking forward to making a bunch of fences. Oh by the way, I got the sheet for $35 plus shipping.
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