Exceptional Durability

Our industry-leading complete door systems are built to help protect against energy loss and break-ins, allowing families to stay comfortable and safe at home.

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Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

Therma-Tru Doors

Therma-Tru exists to make you feel at home. Our innovative products are engineered to work together and perform for a lifetime. We deliver uncompromising quality, inside and out, and provide inspired designs in a wide variety of styles that complement any architectural style.

A Therma-Tru door with wood trim and a decorative metal design on a brick building.

Therma-Tru Doors

A Therma-Tru wood door with glass panel and decorative metal design on a white home.

Therma-Tru Benchmark Doors

Featured Styles by Therma-Tru & Therma-Tru Benchmark

Craftsman

Half- & 3/4-Lite

1/4-Lite

Oval-Lite

No Glass

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Featured Finishes

Ready to Paint

Prefinished Options for Woodgrain

Prefinished Options for Black Paint

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Resources & Tips to Do It Right

How to Measure for a Replacement Door

Accurate measuring is key when replacing or adjusting your front door. Our step-by-step guide can help make sure you cover all areas.

A yellow Craftsman Therma-Tru door in a hallway with blue walls and white paneling.

How to Finish Your Therma-Tru Door

Helpful finishing tips for your Therma-Tru or Therma-Tru Benchmark doors, door lite frames and composite components.

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Why Therma-Tru?

With very little maintenance, a fiberglass door can provide a home with years of beauty, durability and energy efficiency. Therma-Tru fiberglass doors offer the authentic look of wood. But, unlike wood, fiberglass won’t warp or rot. And, unlike steel, it won’t dent or rust. Built with a polyurethane foam core, Therma-Tru fiberglass doors insulate against cold and heat for exceptional energy efficiency.

Get the look of real wood. Our realistic woodgrains are virtually indistinguishable from high-grade wood doors, thanks to Therma-Tru AccuGrain^® technology.

We stand behind more of our door system parts for longer than other door companies because we make or specify everything that goes into our door systems. The homeowner has one source to turn to, Therma-Tru, if an issue arises with the door system.¹ Other companies either don’t warrant as many parts of the door system or warrant them for a shorter period of time. This can leave homeowners without coverage and confused about who to turn to if issues arise.

¹Excluding improper assembly of components into a door system by the distributor, dealer, builder or remodeler, and the installation of the door system. Excluding installations within 5 miles of a body of salt water and the finish. Excluding normal wear and tear. Note: See your Therma-Tru seller or visit Thermatru.com/warranty for details on limited warranties and exclusions.

With Therma-Tru Stain Colors, Giving Your Home a Fresh New Look Is in Reach

Therma-Tru manufactures high-quality exterior and front doors to complement any home’s architectural style. Unlike other door systems from competitors, components from Therma-Tru work together at the most critical points to create tight seals that protect against issues like water leaks and drafts. The Therma-Tru doors catalog includes a range of door types, including ready-to-paint doors, woodgrain doors and more. Want to add a pop of color to your home? Check out Therma-Tru stain colors, which include neutrals like white, called Alpine; light green, called Cypress; bright red, called Ruby Red; and more. Not sure which color to choose? Order finish samples to see Therma-Tru stain in person. You can also shop for doors by collection. Check out Therma-Tru Classic Craft and Therma-Tru Smooth Star doors, both popular options among homeowners. If you live in an area prone to harsh weather conditions, make sure to consider Therma-Tru impact doors to help protect your home against heavy winds, rain and flying debris. To help you decide which door manufacturer to use, check out Therma-Tru door reviews online to hear from satisfied customers.