One-piece corners add style and beauty around every corner.  Adding ease of installation to any project, one-piece corners are available in both Smooth and Select Cedar Woodgrain.

  • Cellular PVC trim that installs like wood
  • Superior quality and excellent dimensional accuracy
  • Low-maintenance, long-lasting material
  • Natural White and ready to install
  • Can be painted to complement with exterior colors
  • Cuts and mills with traditional woodworking tools
  • Class A (Class 1) Flame Spread Classification
  • Stays beautiful without the need for painting
  • Meets ICC and CCMC code requirements
  • 20-year limited warranty

Technical Information

View technical specification guide and safety data sheet for product details.


Installing CertaTrim® properly is critical. For proper installation, using an appropriate PVC cement is critical especially for miter and scarf joints to help control expansion and contraction. We recommend Extreme PVC Trim Welder® or  Partite® Adhesive. View installation guidelines before starting your project.

Warranty Details

CertainTeed's CertaTrim® is backed by a 20-year limited warranty. View warranty for details.

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