Pella® Impervia® Fixed Sash and Frame Window

  • Made with Pella's patented Duracast® fiberglass composite material.
  • Includes a sash and frame so fixed and operable windows look alike.
  • Standard and custom sizes up to 8' 11-1/2" x 5' 11-1/2" for 1-, 2- and 3-wide units.
  • Performance Grade up to PG50.

A local Pella team member is ready to help you with your project.

Features & Options

Sizes and Shapes – Pella Impervia Fixed Sash and Frame Window


Built-to-order in 1/4" increments.

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Add transoms or adjacent windows for flexible combinations.

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Design Data

Design data available for visible glass and frame area.

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Learn about all Pella Sizes and Shapes