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doors windows frames

Fiberglass window frame

Pultruded fiberglass frames. Dimensionally stable across temperature swings; paintable; long service life. Niche but growing residential spec.

Cost tier

PREMIUM

Cost / sqft

$70–$160

Install

specialty

Durability

premium

Maintenance

low

Moisture

excellent

Cost notes

Service life 50+ years. Marvin Integrity + Pella Impervia.

Aesthetic

  • Finish: smooth painted
  • Color range: wide factory color range
  • Visual weight: light

Climate suitability

Hot-humid
Hot-dry
Mixed-humid
Mixed-dry
Cold
Arctic

Source

Architectural Graphic StandardsArchitectural Graphic Standards (Ramsey/Sleeper) — Materials chapter

Tags: fiberglass, window, stable, premium