Pella 450 Series Fixed Frame and Sash Windows

Pella® 450 Series Fixed Sash and Frame Window

2D Cross Section
(Aluminum-Clad Wood)
2D Elevation
(Aluminum-Clad Wood)
3D & BIM
(Aluminum-Clad Wood)
(Aluminum-Clad Wood)
  • Complements Pella 450 Series windows.
  • Rectangular shape only.
  • Performance Grade up to PG50.

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

Installation Guides Warranty Info

Features & Options

Sizes and Shapes Pella 450 Series Fixed Sash and Frame Window


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

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Add transoms or adjacent windows for flexible combinations.

View product matrix

Design Data

Design data available for visible glass and frame area.

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Learn about all Pella Sizes and Shapes

Performance Values Pella 450 Series Fixed Sash and Frame Window

These windows provide outstanding resistance to air and water infiltration, wind and outside noise while increasing energy efficiency, security and ease of operation.

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View thermal performance
View sound transmission performance

Wood Types Pella 450 Series Fixed Sash and Frame Window


Available with Pine interiors and low-maintenance aluminum-clad exteriors. All wood types are treated with Pella's EnduraGuard® wood protection for beauty and performance...year after year.

Pella's EnduraGuard® wood protection formula has three active ingredients. This powerful combination, together with our immersion-treatment method, helps ensure strong protection on every exterior wood surface of our products. The result is advanced protection against the effects of moisture, decay and stains from mold and mildew.

Learn about all Pella Wood Types

Interior Finishes Pella 450 Series Fixed Sash and Frame Window

Interior finish options include unfinished (ready for site finishing), primed, prefinished paint* and prefinished stain*.

Unfinished Interiors

Wood products are available with unfinished interiors so they can be painted or stained to complement other interior finishes.

Primed Interiors

Primed Pine interiors are ready to paint so the windows can perfectly match other painted interior finishes.

Prefinished Painted Interiors*

Wood window can arrive at the job site with a durable prefinished factory-paint finish.

Prefinished Stained Interiors*

The interiors of Pella 450 Series windows are available factory-stained in your choice of seven colors.

  • Black

  • Dark Mahogany

  • Early American

  • Golden Oak

  • Natural

  • Provincial

  • Red Mahogany

*Available on Pine products.

NOTE: Wood is a product of nature; grain pattern will be unique and may vary on each window or door. Actual finish colors may vary from those shown because of the unique nature of wood.

Learn about all Pella Interior Finishes

Exterior Finishes Pella 450 Series Fixed Sash and Frame Window

Pella 450 Series fixed sash and frame windows feature durable, weather-resistant, low-maintenance aluminum-clad wood exteriors.

Exterior Aluminum Cladding Colors

  • White

  • Poplar White

  • Tan

  • Putty

  • Portobello

  • Morning Sky Gray

  • Brown

  • Hartford Green

  • Black

  • Brick Red

Aluminum-Clad Exteriors

  • Pella gives you an extraordinary number of exterior color choices.
  • Standard and Feature1 colors.
  • No setup charges or minimum quantities for any Pella color option.

Durable, low-maintenance EnduraClad aluminum cladding with EnduraClad protective finish for most projects where resistance to fading, chalking, chemicals and abrasion is needed. Meets the performance requirements of AAMA 2603.

Seacoast EnduraClad protective finish for coastal projects with high salt exposure.

1Available in Poplar White, Putty, Hartford Green, Black and Brick Red only.

Learn about all Pella Exterior Finishes

Glazing Pella 450 Series Fixed Sash and Frame Window

Pella's most popular glass options provide design, performance and budget flexibility.

Insulating glass options include:

  • Advanced Low-E with argon*
  • SunDefense Low-E with argon*
  • NaturalSun Low-E with argon*
  • Clear
  • Obscure
  • Tempered

Pella's Low-E glass options reduce the transmission of solar heat gain and ultraviolet light while allowing the transmission of visible light.

*Optional high-altitude Low-E insulating glass may not contain argon in most products.

View thermal performance

Learn about all Pella Glass Options

Grilles Pella 450 Series Fixed Sash and Frame Window

Four grille types are available on Pella 450 Series fixed sash and frame windows.

  • Simulated-Divided-Light grilles adhere to the exterior face, and wood grilles are adhered to the interior face.
  • Grilles-between-the-glass are permanent aluminum grilles that are factory installed between the panes of glass to provide easy cleaning.
  • Removable Interior grilles can be removed for glass cleaning.
  • Simulated-Divided-Light grilles with Spacer.
  • Simulated-Divided-Light Grilles

  • Grilles-between-the-glass

  • Removable Interior Grilles

  • Simulated-Divided-Light Grilles with Spacer

Simulated-Divided-Light grilles

  • Interior grilles are wood and can be prefinished to match frame. Aluminum-clad exterior grilles match frame color
  • Grilles are 7/8" wide.
  • Color matches frame.
  • Multiple grille patterns are available.

Grille Profiles

  • 7/8" width


  • Permanent aluminum grilles are factory-installed inside the airspace of insulating glass to provide the look of divided lights while making glass cleaning easy.
  • Exterior finish matches aluminum-cladding color.
  • Seven interior colors are available.
  • Grilles are 3/4" wide.

Grille Profiles

  • 3/4" width

Grille Interior Colors

  • Black

  • Brickstone

  • Brown*

  • Cordovan

  • Harvest

  • Ivory

  • Putty*

*Only available with matching interior and exterior colors.

Removable interior grilles

  • Roomside wood interior grilles are securely attached to the interior, but can be removed for glass cleaning.
  • Available prefinished to match the interior wood finish and exterior cladding.
  • Available in two standard and custom widths.

Grille Profiles

Also available in custom widths.

  • 3/4" width

Grille Patterns

  • Traditional

  • Prairie

  • Cross

  • Top Row

Learn more about Pella ProLine Fixed Sash and Frame Window Grille Profiles, Patterns, Spacing and Visible Glass Design Parameters

Learn about all Pella Grille Options

Hardware Pella 450 Series Fixed Sash and Frame Window

Hardware is not used on fixed sash and frame windows.

Screens Pella 450 Series Fixed Sash and Frame Window

Screens are not used on fixed sash and frame windows.

Case Studies & Projects
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