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The Extrutech 3 x 3 Corner Trim ( Item#P035016) provides a quick, attractive way to give your corner extra protection and a nice looking finish around windows and doors, or other openings.

The 3 x 3 corner trim has a overall 3" inches width and coverage for each side of our 1/2" thick liner panels as needed. The trims are available in 8' Foot and 16' Foot lengths.

Extrutech Plastics 3 x 3 Corner Trim is made of an exterior grade, hard, dense, rigid polymer, with a smooth surface for easy cleaning. The trim can be cut with a standard power miter saw using a fine-toothed blade. Fasten with construction adhesive per installation instructions and industry standard.
Unit of Measure



N/A Engineered Polymer
Color1 N/A White

Available Lengths

N/A 16 ft8 ft
  • 1 A 20% charge will be added for custom cuts, and /or colors. Volume discounts are available.