Frequently Asked Questions

Q: How thick are the veneers on Simpson doors?

A: Most door veneers are 1/16” thick, much thicker than many inferior, imported doors on the market. This thickness allows for multiple refinishes over the life of the door. All Simpson doors are available with 1/4" and 1/8" thick veneers as an upgrade. If you have special needs that require components made from solid wood, that can be also done for an additional charge.

Q: What is the difference between SDL and TDL?

A: Both acronyms (SDL=Simulated Divided Lite, TDL=True Divided Lite) refer to the construction method used for a door that has the look of multiple panes of glass separated by bars. In TDL construction, the door includes multiple glass units held in place and separated by bars. In SDL construction, the door includes a single glass unit and bars are affixed to the face of the glass. Both construction types result in a door that looks nearly identical, and each technique has its own advantages. A Simpson Authorized Dealer can be consulted to see which method makes the most sense for a specific door.

Q: How do I find out if you offer an interior version of a specific exterior door?

A: We can make doors in any design, size and wood species. Therefore we can make any interior door to match an exterior door. And truly, any exterior door can be used in an interior application.

Q: What is the warranty on a Simpson door?

A: Warranties can differ based on door type. See the Warranties page for a complete explanation.

Q: Where can I find a listing of Authorized Simpson Dealers for my area?

A: All authorized dealers are listed using a zip or postal code search at Where to Buy.

Q: Does Simpson offer BIM and/or CAD files?

A: .dwg, .dxf, and .rfa files for most doors are available here.

Q: Can I get my door pre-hung?

A: Yes. Your Simpson Authorized Dealer can arrange pre-hanging of your door. To find a dealer near you, go to our Where to Buy page.

Q: Where do I find hardware?

A: Simpson does not supply hardware for its doors. However, hardware can be obtained from a Simpson Authorized Dealer.

Q: Where can I find what sizes a specific door is available in?

A: Simpson can build any door in any size. Simply indicate the specific size needed when placing your order.

Q: What does "VG" stand for in VG flat panel?

A: Vertical grain.

Q: What are SG and IG?

A: These acronyms describe glass in a door. IG (insulated glazing, also known as double-paned glass) describes a glass unit made up of more than one piece of glass around a central airspace. This method of construction has proven to provide superior energy efficient characteristics vs. a single piece of glass.  SG (single-glazed, also known as single-paned glass) indicates a single piece of glass for that unit, a common request for interior doors.

Q: How to remove excess putty (glazing compound)?

A: Exterior wood doors that have glass also have glazing compound. That glazing compound waterproofs the glass to the wood parts. Properly done, we expect to see some excess glazing compound squeeze out around these edges. You have to remove that before you can put the finish on the door or you’re going to get a poor finish.

Two mistakes that people use, is trying to use a razor knife and a razor scraper. The proper tool to use is an awl. An awl is round, it’s safe to the door. It also creates a good transition for the glazing compound. And to remove this all you need to do is press the awl firmly in against the glass itself and run right around the edge of the glazing bead or the sticking. It can be frustrating trying to use any other tool because it’ll take a long time, you’ll likely damage the door – you might even hurt yourself.