J-Pocket trimboards help to ease installation and provide a clean, concealed edge for siding integration.

All J-Pocket trimboards come with one side in Select Cedar and one side with smooth finish. 


  • 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. View installation guidelines before starting your project.

Warranty Details

All CertainTeed's CertaTrim® products are covered by a 20-Year Limited Warranty.

Trim Contractors

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