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Doors & Windows

Douglas Lumber offers a wide selection of interior and exterior doors to fit your project needs.

Your doors serve many important functions in your home: they help protect your property from heat, cold, moisture and high winds, keep your family safe from intruders and accent your home's unique style.

Whether you have a large construction project or need a single replacement door for your home, come down to our showroom and one of our team members will help you find the perfect fit.

Douglas Lumber is a stocking dealer of Therma-Tru doors.


Discover the possibilities for your home. Therma-Tru’s superior engineering results in high-quality products with enduring beauty. Every line of Therma-Tru doors we offer comes with a package of performance that is unrivaled in the industry. With a front door by Therma-Tru, not only will you see an increase in comfort, energy efficiency and performance, you will also see an increase in curb appeal.

Learn more about Therma-Tru doors!

Our Featured Brands:

Check out our Buying Guides to learn before you buy.

At Douglas Lumber, we can help you to choose the right products for your project.

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