Duraboard (by PlyTrim) » A leader in an emerging product category, Duraboard produced by Ply-Trim in Youngstown, OH, is a cellular PVC trimboard with a 25 year warranty. Duraboard cuts and routs like pine trimboards and takes standard fasteners. However unlike wood, Duraboard is designed to be impervious to moisture, insects and decay. Available in traditional widths and 16', 18' and 20' lengths.

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