Therma-Tru Doors first created the fiberglass entry door category over 20 years ago with the introduction of our Fiber-Classic® wood-grained doors. Today, we are the nation's leading manufacturer of fiberglass and steel exterior door systems, and we are the most preferred brand of entry doors by builders and remodelers. Not only has our attention to details in styling brought improved curb appeal and value to our customers' homes, but our proprietary security systems and top-of-the-line weather resistance features built into every door we make, brings the comfort of a Therma-Tru Door home to its owner.