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Therma-Tru first created the fiberglass entry door category over 20 years ago with the introduction of our Fiber-Classic wood-grained doors. Today, they are the nation's leading manufacturer of fiberglass and steel exterior door systems, and they are the most preferred brand of entry doors by builders and remodelers.
With a door for every style, taste and budget, Thermatru and John's Lumber is all you need to know.
Fiberglass Door Systems
Durable, won't dent, crack, split or splinter
Energy Efficient - Polyurethane foam core offers five times greater insulation value than comparable wood doors
Smooth Star® - Called the "Steel-Beater" won't dent or rust
Fiber-Classic® - The look of real wood without the worry of splitting or warping
Classic-Craft® - Giving you the texture and feel of real wood
Premium Steel Door Systems
Security - Constructed of 24 gauge galvanized steel
Energy Efficient - Polyurethane foam core offers five times greater insulation value than comparable wood doors
Limited 10 year warranty
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