Marvin Fiberglass Windows

Fiberglass Specialty Shape Window

The Fiberglass Specialty Shape windows, made of Ultrex® fiberglass, offer eight unique shape options. Specialty shape windows are often used as sidelights and transoms, or combined to create a wall of fixed windows.

Essential Specialty Shape Window

Material

Ultrex Fiberglass Exterior and Interior

Sizing

Available in Sizes up to 49 Square Feet with Longest Side 9.5’

Color

6 Exterior Color Options | 4 Interior Color Options

Why You'll Love It

Strongest Window Material

Made with Ultrex fiberglass, which is 8x stronger than vinyl

Virtually Maintenance Free

Resists fading, bends, dents, and cracks

Unique Shape Options

Eight shapes include rectangles, triangles, pentagons, and octagons

House with Essential Specialty Shape Window

Additional Features

  • Jambs are available factory applied or in an extension kit in 4 9/16" inch and 6 9/16" inch sizes
  • Factory, reinforced, and field mulling kits available
  • PG50 performance rating

Explore Window Styles

Essential Awning Window

Awning Windows

Essential Casement Window

Casement Windows

Essential Double Hung Window

Double Hung Windows

Essential Glider Window

Glider Windows

Essential Picture Window

Picture Windows

Round Top Window

Round Top Windows

Marvin Essential Single Hung Window

Single Hung Windows

Essential Specialty Shape Window

Specialty Shape Window

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