Series 3850-F Fiberglass Fixed System

The Series 3850-F is designed to emulate our 3800-T fixed system.
This system features a slim 1-7/16" perimeter sightline.
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Design / Performance
  • The essential design of the Series 3850-F matches the Series 3800-T so that each can be used on the same project with almost seamless transition.
  • Perimeter frame comes standard with an integral nail-fin.
  • The Series 3850-F achieves an even better u-factor than its thermally broken aluminum twin (Series
  • The inherent strength of the Series 3850-F system allows designers to create larger systems than most fiberglass window products. Additionally, the factory will insert metal stiffeners to achieve higher wind loads.
Series 3850-F Window 
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For budget driven jobs, Fleetwood offers optional products. See the Homeowners menu above.