Fiber glass casement patio door
Fiber-Classic® THERMA-TRU DOORS

Meet the very first fiberglass hinged patio door — the French door that revolutionized an industry. Therma-Tru’s Fiber-Classic® French patio doors changed how patio doors are made, and still sets the standard for today’s fiberglass hinged patio doors.

Our original vision was a hinged patio door that would not crack, split, splinter, or warp like wood. The result? Therma-Tru’s Fiber-Classic French door that’s durable, stylish, economical and most preferred by builders and remodelers.

Fiber-Classic has the warm, rich look of hardwood, with all of the advantages of Therma-Tru fiberglass.