Structural Fiberglass Market Outlook 2021: Growth, Applications, and Advantages

Structural fiberglass, a high‑performance fiber‑reinforced polymer (FRP), is rapidly becoming the material of choice across diverse sectors. Its combination of lightweight, superior strength, and exceptional durability—resisting corrosion, rot, and extreme environmental conditions—makes it ideal for everything from bridges and cell towers to stadium seating and beyond. While other composites such as glass and carbon fiber exist, structural fiberglass is outpacing them in both adoption and market share.

Despite the uncertainty that accompanied the 2020 pandemic, the outlook for 2021 and the years that follow remains exceptionally bright for structural fiberglass.

2020: A Challenging Year for Fiberglass

In 2020, composite sales—including fiberglass—were hit by the global COVID‑19 slowdown. Manufacturing shutdowns and reduced demand in automotive, aerospace, wind energy, and oil & gas triggered a noticeable dip in orders. However, this setback was temporary and did not alter the long‑term growth trajectory of fiberglass.

The Resurgence

As industries most affected by the lockdowns—particularly automotive and construction—re‑accelerate, demand for structural fiberglass is rebounding. Forecasts from Markets & Markets project the global composites market to surpass $161 billion by 2027, with fiberglass capturing roughly 20% of that value. By Q4 2025, the global fiberglass market alone is expected to reach $14.3 billion, underscoring the material’s expanding footprint.

Key Drivers: Automotive and Construction

Both sectors are driving the growth. In construction, fiberglass is used beyond insulation, finding roles in decking, bridge components, and framing—especially in high‑performance infrastructure projects. The automotive industry is increasingly incorporating fiberglass into interior panels and structural elements to slash vehicle weight, improve fuel efficiency, and meet tightening emissions standards. These applications illustrate the material’s versatility and cost‑effectiveness.

Where Structural Fiberglass Is Making an Impact

Structural fiberglass is already integral to a wide array of products and industries:

• Sporting goods—surfboards, skis, bicycles, football training equipment
• Footwear—protective toe caps, shank spacers, truss components
• Playground equipment—climbing structures, swing sets, slides
• Marine—docks, boat slips
• Meat packing—catwalks, platforms, stairs, handrails
• Oil & gas—wellhead platforms, subsea skids

Its adaptability stems largely from pultrusion—a continuous manufacturing process that weaves fibers and resin into robust, lightweight profiles. For more on pultrusion, learn more here.

With pultrusion, DEFI delivers:

• Higher tensile strength and durability than molded FRP
• Complex profiles unattainable with other FRP methods
• Massive, seamless products thanks to continuous production

Choosing DEFI’s structural fiberglass guarantees superior strength and precise design that outclass other FRP variants.

Advantages of Pultruded FRP

Pultruded FRP not only matches but often surpasses traditional building materials in key areas:

Lightweight and Strong

Pultruded fiberglass is roughly 30% lighter than aluminum and 70% lighter than steel, yet it outperforms aluminum in tensile strength and rivals steel. Its inherent flexibility reduces the risk of denting and deformation, lowering safety hazards and handling costs.

Non‑Conductive

Unlike metals, fiberglass does not conduct heat or electricity, making it ideal for tool handles, casings, and other components that may become hot or electrically charged.

Corrosion‑Resistant

Fiberglass remains unchanged in harsh environments—saline waters, acidic chemicals, and extreme temperatures—eliminating the maintenance needs that plague steel and wood.

Unmatched Versatility

Using pultrusion, we can produce any shape—square tubes, channels, equal angles, or custom profiles—at lower cost and with greater design freedom than wood or steel.

Why Choose DEFI for Structural Fiberglass

Whether you’re building a bridge, a wind turbine blade, or a custom industrial component, DEFI’s expertise in pultruded FRP ensures you receive materials that combine strength, durability, and precision. Contact us today to discuss how we can help you create products that stand the test of time.