Therma-Tru's composite door frame features Tru-Guard_TM composite technology for a rot-free door frame that does not absorb moisture and resists mold, mildew, fungus and wood-ingesting insects.

Engineered to work with Therma-Tru doors, as well as sill, bottom sweep, weatherstrip, corner seal pads and other components – all manufactured by Therma-Tru. Included in the industry's most comprehensive lifetime limited warranty when installed as part of a Therma-Tru® fiberglass door system for peace of mind.