Divided Lites
Options Overview
The options shown below are just an overview of what's available. Please visit each specific product page to learn what options are available for each product model. Limitations may apply.
NOTE: On-screen images of finishes and colors may vary slightly from actual colors. Selections should be made based on actual color samples. Prices may vary depending on color chosen.
Grilles-in-the-Airspace (GIA) for wood products
- Achieves a style similar to true divided panes with unique benefits
- Aluminum bars are sealed within the "airspace" of insulating glass units*
- Easy to clean, with no obstruction on the interior or exterior of the glass unit
- The bars allow air-flow throughout the insulating glass unit, creating an unobstructed thermal break, maintaining an energy efficiency not possible with true divided panes
- Contoured, aluminum bars (finishes below)
- Flat, aluminum bars (finishes below)
- "Pencil-shaped" brass bars
- "Pencil-shaped" pewter bars
Finish Options on Contoured & Flat Bars (contoured bars shown)
NOTES: Ask your dealer about other options. Some units are available with:
- Flat brass bars
- Two-tones, i.e. one color or wood appearance option on the interior and a different one on the exterior
- Custom patterns & bar "shapes" (limitations apply due to bending capabilities)
- Diamond patterns are not available
*For triple pane units, the bars are held within the exterior airspace. GIA are not available on Ultra or Heritage Series Sterling Double Hungs, Studio Units, or Sliding Patio Doors with triple pane glass.
**The wood "finishes" are wood appearance options and not real wood.
Grilles-in-the-Airspace (GIA) for vinyl products
- Achieves a style similar to true divided panes with unique benefits
- Aluminum bars are sealed within the "airspace" of insulating glass units*
- Easy to clean, with no obstruction on the interior or exterior of the glass unit
- The bars allow air-flow throughout the insulating glass unit, creating an unobstructed thermal break, maintaining an energy efficiency not possible with true divided panes
- Contoured, aluminum bars (finishes below)
- Flat, aluminum bars (finishes below)
- "Pencil-shaped" brass bars
- "Pencil-shaped" pewter bars
Finish Options on Contoured & Flat Bars (contoured bars shown)
NOTES: Ask your dealer about other options. Some units are available with:
- Flat brass bars
- Two-tones, i.e. one color or wood appearance option on the interior and a different one on the exterior
- Custom patterns & bar "shapes" (limitations apply due to bending capabilities)
- Diamond patterns are not available
*For triple pane units, the bars are held within the exterior airspace. GIA are not available on Latitude Series units with triple pane glass or Windquest EP doors.
**The wood "finishes" are wood appearance options and not real wood.
The PDL System - Energy Efficiency with Historic Beauty (wood products)
The Performance Divided Lite (PDL) system uses a single insulating glass unit, which offers much better U-factors than true divided lite units. This is due to the large, unobstructed thermal break created by airflow within the insulating glass unit.
- Bars are adhered to the interior of the insulating glass unit
- Beveled-profile bars are adhered to the exterior of the insulating glass unit
- Champagne-colored bars* are held within the insulating glass unit
PDL bars
- Exterior & interior bars are finished to match the exterior or interior of the window or door unit.
- Optional bar widths: 5/8", 7/8", 1-1/8", 1-3/4", 2-1/4", 4-1/2" and custom
- Interior bar profiles: beveled (standard), ovolo, and square
NOTE: Double pane insulating glass have one bar within the insulating glass unit, as shown above. Triple pane insulating glass have two bars, one in each airspace. Limitations may apply, especially to curved bars.
Performance Divided Lites (PDL) for Latitude Series vinyl products
The Performance Divided Lite (PDL) system uses a single insulating glass unit, which offers much better U-factors than true divided lite units. This is due to the large, unobstructed thermal break created by airflow within the insulating glass unit.
Construction
- Beveled bars are adhered to the exterior and interior of the insulating glass unit
- Champagne-colored bars are held within the insulating glass unit
PDL bars
- Exterior & interior bars are finished to match the exterior or interior of the window or door unit
- Optional bar widths: 7/8", 1-1/8", 1-3/4" and 2-1/4"
NOTE: PDL is not available for single hungs, single sliders, or picture slider windows. PDL is not available for Latitude Series products with triple pane insulating glass units.
Interior Removable Grilles for Versatility & Easy Cleaning
Interior removable wood grilles offer aesthetic flexibility, as well as easy cleaning. They are available only on wood products.
Construction & Benefits
- Built with full surround frame and bars that interlock at the joints for stability
- Applied to interior of window using exclusive hidden clip system
- Offer the ability to change styles by removing the grilles
- Can easily be removed to clean the glass
- Species: pine (standard), other wood species (option)
Bar Profiles & Widths
- Detailed grooves on exterior view for subtle depth and richness
- Interior bar profiles: beveled (standard), and ovolo (option)
- Optional bar widths: 7/8", 1-1/8", and custom
Factory Finishes
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Prefinishing available to match interior finish of entire unit (option)
NOTE: If ovolo bar profile is chosen, glazing beads will be ovolo to match. If a finish is requested, it will be applied to both sides of the grille; i.e., the sides seen from the interior and exterior will be finished the same. Primer is not available on grilles.
True Divided Lites - Provides Historic Authenticity
True divided lites (TDL) gives each unit authentic traditional divided panes often found in historical projects. It is available only on Heritage Series products.
Construction & Benefits
- 1-1/8" wide wood muntin bars in between individual 5/8" insulating glass*
- Horizontal and vertical bars interlock for strength and security
- Profile shadow lines enhance the warm, rich look
- Wood Species: pine (standard), other wood species (option)
- Custom bar widths and profiles available
Factory Finishes
- Unfinished on interior, primed on exterior as standard
- Prefinishing available to match exterior and interior finish (option)
NOTE: Units with a traditional sash utilize 1/2" insulating glass.











