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AG Millworks
Simulated vs. True Divided Light Doors and Windows

True Divided Light (TDL) windows are made up of small panes of glass separated by muntins (the bars dividing the glass). Simulated Divided Light (SDL) windows are windows designed to replicate this look. SDL windows divided appearance is achieved by placing grilles or bars on the exterior and/or interior surfaces of a single large pane of glass. 

SDL windows offer the aesthetic charm of traditional divided light windows while providing the benefits of modern window technology, such as improved energy efficiency and ease of maintenance. AG Millworks offers both SDL and TDL options in various styles and configurations to suit different architectural designs and preferences. 

Divided Lite Options
Simulated Divided Lites (SDL)

Want to add a modern cottage look to your window or door? AG Millworks offers Simulated Divided Lites (SDL) to complete your stunning design. 

*Upcharge applies

SDLs come in the following sizes:

  • 5/8"
  • 7/8"
  • 1 1/8"

See below for technical drawings.

True Divided Lites (TDL)

True Divided Lites (TDL) are available on all-wood products.

TDLs come in the following sizes:

  • 1 3/4"

See below for technical drawings.

SDL and TDL Shape Options

If you have an all-wood door, then the SDL bars come in your choice of square, bevel, or ovolo.

For aluminum Clad doors and windows, the exterior Clad SDL bars can only be in bevel. The interior SDL bars can be square, bevel or ovolo.

TDL bars are only available in square or ovolo wood.


Download technical drawings of each option:

    About us

    Welcome to AG Millworks, where we combine extraordinary designs with traditional old world craftsmanship and innovation to produce ageless millwork creations that will bring your building project to life.

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    Phone:  (805) 644-4494
    3111 Golf Course Drive
    Ventura, California 93003