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CertainTeed® 12' 6
CertainTeed® 12' 6

CertainTeed® 12' 6" Dual Undersill Trim


This dual undersill trim keeps siding in place so it does not bow if siding needs to be cut in the center of the profile. It's available in a variety of colors to suit your needs.


  • Trim measures 3/4" x 12' 6"
  • Dual undersill trim
  • Some colors must be ordered in increments of 12
  • Limited lifetime warranty
  • Matte finish
  • Made in the USA
  • Color representation may vary depending on computer screen settings. Please refer to a Menards store location for accurate color samples

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