Simpson Simulated Divided Lite (SDL) is an options when looking for French and Sash doors. The single glass unit provides for better energy efficiency while maintaining the appearance of a true divided multi-lite doors.

Our Exterior French and Sash doors are made with your choice of Simulated Divided Lite (SDL) or True Divided Lite (TDL) construction, and can be specified with WaterBarrier ® and UltraBlock ® technology upgrades. So you’ll maximize your view of the outdoors, while keeping the elements of nature at bay. VIEW ALL EXTERIOR FRENCH & SASH DOORS

doors for over a century and provides two basic construction types for exterior doors: Simulated Divided Lite (SDL) and True Divided Lite (TDL). When used with clear glass, it is virtually impossible for a homeowner to tell the difference. So what is the difference, and why should it matter when you order a Simpson door? Check out the reasons ...

Divided Lite (SDL) collection provides a selection of classic French doors and stylish Prairie and Craftsman doors. Doors are made with a premium fiberglass construction featuring an authentic wood grain surface to complement a wide range of architectural styles.

French doors are available in your choice of four stylish designs or with no SDL grids. Constructed with sustainably sourced color-matched Meranti Mahogany, Knotty Alder, and encapsulated Accoya timber. Anti-splitting 11-ply construction and vertically grained panels with same wood species throughout door.

The simulated divided lite (SDL) collection provides a selection of classic French doors and timeless Mission style doors. This collection of steel composite doors will complement a wide range of architectural styles.

Simulated Divided Lite (SDL) - An energy-efficient way to create the look of authentic divided lites, SDL bars are permanently adhered to both sides of the glass and are available with or without a spacer bar installed between the glass to create even more depth that resembles an ADL.

Exterior French & Sash Doors. Door Type: Exterior. Brand: Simpson. Door Number: 37503

French and Sash doors are created with our exclusive ViewSaver ® technology, and can be specified with WaterBarrier ® and UltraBlock ® technology upgrades.

Gain architectural freedom with a range of profile and panel choices, including steel doors with transoms, sidelights, kick plates, and simulated (SDLs) or true divided lights (TDLs).