Simpson Door Company – your source for handcrafted exterior and interior doors since 1912. With a wide variety of designs and wood species, Simpson offers something for everyone. At Simpson, we believe the doors in your home are more than just building materials. They become part of the backdrop for the memories of your life. That’s why we build doors that outlast changing styles. Doors that stand up to years of use. In short, doors you can live with for a long, long time.