Send Your Inquiry Today
Quick Quote

Fiberglass Decking: An In-depth Guide

Fiberglass decking is a type of flooring made from composite materials. It is known for its high strength and low maintenance requirements. This article will discuss the various types of fiberglass decking, its advantages and disadvantages, applications, and usage scenarios.

What is Fiberglass Decking?

UV-resistant fiberglass decking strong FRP bridge decking
Fiberglass decking refers to a type of floor material commonly used in various settings including industrial, commercial, and residential areas. It is crafted from fiberglass-reinforced plastic (FRP), also known as glass-reinforced plastic (GRP), which combines glass fibers with polymer resin to create a robust, durable, and versatile material. Compared to traditional patio materials like wood or metal, fiberglass reinforced plastic can withstand heavy loads and adverse conditions.

How is Fiberglass Decking Manufactured?

Fiberglass decking is produced by integrating glass fiber reinforcement materials, such as glass and felt pads, with a thermosetting resin system. This combination is achieved through a process known as pultrusion, where the glass fiber and resin mixture is pulled through heated molds. The resulting panels can be connected using an innovative interlocking design to form a continuous solid surface that is easy to install and aesthetically pleasing.

What are the Different Types of Fiberglass Decking?

Fiberglass decking comes in several types, each designed to meet specific needs and applications. The differences between these types typically relate to the manufacturing process, intended use, and specific features they offer, such as durability, anti-slip properties, and load-bearing capacity.

  • Molded Grating Panels: These panels are created by combining coarse fiberglass yarn with a thermosetting resin system in a mold. They are highly durable and suitable for heavy-duty applications, typically used in industrial environments for walkways, platforms, and other areas requiring a sturdy anti-slip surface.
    molded decking
  • Pultruded Grating Panels: Similar to molded grating panels but made through the pultrusion process, where fiberglass strands pass through a resin bath and then through heated molds to form grating panels. This technique produces panels with a very high strength-to-weight ratio. Pultruded grating panels are significant where longer spans and higher load capacities are needed.
    pultruded decking

What are the Advantages of Fiberglass Decking?

Fiberglass decking offers numerous benefits, making it popular across various applications, particularly in outdoor environments.

  1. Durability: Fiberglass decking is incredibly durable, capable of lasting decades without significant wear. It is robust and can withstand harsh environmental conditions without rotting, deteriorating, or suffering from pest infestations.
  2. Low Maintenance Costs: Unlike wood, which requires regular treatments and refinishing, fiberglass decking is low-maintenance. It does not need frequent sanding, painting, or sealing, saving time and money over the deck’s lifespan.
  3. Waterproof and Moisture-Resistant: Fiberglass is one of the best materials for waterproof performance, making it ideal for rainy or moist regions. This feature ensures the deck remains intact without mold and mildew issues, common in other materials like wood.
  4. Aesthetic Flexibility: Fiberglass decking can be produced in various colors and textures, customizable to meet any residential or commercial property’s aesthetic needs. It can also mimic the look of traditional materials like wood, offering a maintenance-free appearance.
  5. Safety Features: Many fiberglass decking materials have built-in anti-slip surfaces, making them safer than other types of decking materials, especially in wet conditions.
  6. Environmental Impact: Fiberglass is known for its environmental friendliness due to its 100% recyclability. This reduces the environmental impact compared to non-recyclable materials.
  7. Cost-effectiveness: Although the initial cost may be higher than some traditional materials, the long lifespan and low maintenance costs make fiberglass decking a cost-effective option in the long run.
  8. Resistance to Various Factors: Fiberglass decking can resist ultraviolet rays, corrosion, and even fire, enhancing its durability and suitability for various climatic conditions.

What are the Disadvantages of Fiberglass Decking?

While the advantages of fiberglass decking far outweigh its disadvantages, these are important considerations for potential users:

  1. Cost: Initially, fiberglass decking might be more expensive than other materials like wood. The higher upfront cost could be a barrier for some homeowners or businesses considering fiberglass decking.
  2. Installation Sensitivity: Proper installation of fiberglass decking is crucial. Improper installation could lead to poor fit or compromised performance, necessitating skilled professional installers, which adds to the overall cost and complexity of the project.
  3. Limited Recycling Options: Although known for its durability and long lifespan, fiberglass faces challenges in disposal and recycling. It is not as easily recyclable as materials like wood, which could concern those looking to make environmentally sustainable choices.
  4. Aesthetic Limitations: While fiberglass decking is available in various colors and styles, some users may prefer the natural look of wood, which fiberglass cannot fully replicate. This could be a disadvantage for those who value the traditional aesthetic of wooden decks.
  5. Thermal Conductivity and Comfort: Due to its material properties, fiberglass can absorb and radiate heat, which might make it uncomfortable to walk on in extremely hot conditions.
  6. Repair Complexity: Compared to materials like wood, repairing fiberglass decking can be more challenging and costly if damaged, as it might require replacing entire sections rather than simple spot repairs.

What Are the Applications of Fiberglass Decking?

frp decking application
Fiberglass decking’s durability, corrosion resistance, and low maintenance requirements make it widely applicable. Here are some of the applications mentioned in the provided information:

  1. Industrial Flooring: Ideal for industrial flooring, fiberglass decking can suppress steam and smoke in trench covers or provide a stable footing for walkways.
  2. Marine Environments: Suitable for offshore drilling platforms, water treatment facilities, livestock facilities, and especially for docks and piers in wet marine environments.
  3. Cooling Tower Decks: Fiberglass decking is suitable for cooling tower decks, where its solid surface and superior performance over traditional materials like wood are particularly useful in moist and chemical environments.
  4. Temporary Flooring: It can be used as temporary flooring in various settings, offering a quick and stable solution that can be easily installed and removed as needed.
  5. Odor Control Covers: Fiberglass decking is used to construct odor control covers, crucial for managing emissions from industrial or municipal facilities.
  6. Wind Walls and Roof Walkways: The material is also used for wind walls and roof walkways, providing a safe and durable surface for maintenance and operational activities.
  7. Bridge Decking: Fiberglass bridge decking is used in bridge construction as a lightweight alternative to traditional materials, capable of bearing heavy loads and withstanding environmental pressures.
  8. Pool Decks: The anti-slip and moisture-resistant properties of fiberglass decking make it an excellent choice for pool decks, ensuring safety and durability in wet conditions.
  9. Electromagnetic Transparency Structures: Fiberglass decking is used in structures requiring radio frequency transparency, such as buildings near cell phone towers or other communications equipment, because it does not interfere with signal transmission.
  10. Scaffolding and Honeycomb Wall Panels: It is also used for scaffolding and honeycomb wall panels, providing a robust and safe platform for construction and maintenance work.

What Are the Maintenance Requirements for Fiberglass Decking?

The maintenance requirements for fiberglass decking are very low, making it an attractive option for those seeking low-maintenance outdoor space materials.

  1. Minimal Cleaning: Fiberglass decking typically requires only basic cleaning to maintain its appearance. This might include sweeping or washing the deck to remove general debris, mud, or other materials.
  2. No Need for Sanding, Staining, or Sealing: Unlike wood, fiberglass decking does not require sanding, staining, or sealing, which are common maintenance tasks for traditional wooden decks.
  3. Resistance to Common Issues: Fiberglass decking materials have many of the common problems associated with traditional wooden decks, such as mold, fading, and splitting. The resin coating adds a layer of protection, further reducing maintenance needs.
  4. UV Stability: Fiberglass decking has UV stability, meaning it is resistant to fading or degradation from exposure to sunlight, further reducing maintenance requirements.
  5. Corrosion Resistance: This material is corrosion-resistant, particularly beneficial in environments exposed to moisture or chemicals, requiring infrequent repairs or replacements.
  6. Avoid Strong Cleaning: While using a power washer for cleaning might be tempting, it is generally not recommended for composite decking as it can damage the material. Simple soap water or vinegar solution is advised for cleaning stubborn stains.
  7. No Extensive Maintenance Needed: Overall, fiberglass decking does not require extensive maintenance. Its design can withstand harsh elements and environments, requiring no ongoing maintenance.


This article has introduced some basic knowledge about fiberglass decking, highlighting its maintenance-free features which have made it a favorable choice for some outdoor projects. If you have such needs, we can provide high-quality fiberglass decking.

Looking Forward
Your Next Project!

Update cookies preferences
Scroll to Top