Fiberglass Doors
Discover the exceptional quality of fiberglass entry doors by Mastergrain. Manufactured in Ontario, our doors come in a variety of colors styles to perfectly complement your home's aesthetic. Trust the professionals at St Clair Windows and Doors for expert installation, ensuring your new door not only looks great but also stands the test of time. Upgrade your entryway the best-in-class quality you deserve!















































Features

Built to Last
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Don't warp, rot or crack like wood doors and requires less maintenance
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Don't rust or dent like steel doors
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Have seamless grain and stain matching across fiberglass components
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Are engineered for the extreme hot and cold temperatures of North America

Composite Cladded Component
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Versatile lengths and widths
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2X screw holding power due to rigid composite formulation and closed cellular structure
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Rot and moisture resistant
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Stronger than wood door frames
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Low maintenance
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Insect and rodent resistant

A True Entry Door Solution
What sets MASTERGRAIN™ apart? It’s the commitment to quality and investment in world-class manufacturing technologies. Every MASTERGRAIN woodgrain fiberglass door is built with fiberglass cladded components in order to deliver a finish that is seamless, strong and completely stainable. The result is a versatile door that flawlessly replicates the look, texture and aesthetic of real wood.