Pella® Impervia® Casement Window

  • Made with Pella's patented Duracast® fiberglass composite material.
  • Operable sizes up to 3' 1-1/2" x 6' 7-1/2".
  • Performance Grade up to PG50.
  • Limited opening and egress hardware available.

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

Features & Options

Sizes and Shapes – Pella Impervia Casement 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 egress, vent opening, clear opening, visible glass and frame area.

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  • Rectangle

Learn about all Pella Sizes and Shapes