Formanek doors come with a custom wood interior and an insulated core with durable steel exterior. Any style below (first 6 in top row) can be ordered in a variety of wood species. Therma-Tru doors are molded of impact-resistant fiberglass, that has the look, texture and feel of natural wood grain. You can’t tell these doors apart from real wood. They resist dents, dings, warping, rotting and cracking. A small variety of doors are shown. Mix and match doors with the sidelights you prefer. Click on door to see a larger image.