Pella® Impervia® Sliding Window

  • Made with Pella's patented Duracast® fiberglass composite material.
  • Two- and three-panel configurations.
  • Operable two-panel sizes up to 5' 11-1/2" x 5' 11-1/2".
  • Operable three-panel sizes up to 8' 9-1/2" x 5' 11-1/2".
  • 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 Sliding Window

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

View size tables

Add transoms or adjacent windows for flexible combinations.

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Design data available for egress, vent opening, clear opening, visible glass and frame area.

View design data


  • 2-Panel

  • 3-Panel

Learn about all Pella Sizes and Shapes