From on the water to on the road
Coosa is the trusted name in Specialized Panels.

Say goodbye to Rot
Upgrade today and experience the Coosa advantage.

Specialized Wood Replacement Panels
We make a reliable alternative to plywood and other traditional unreinforced core materials.



  • high-density, closed-cell, polyurethane foam reinforced with woven roving continuous strand fiberglass



  • greater capacity and 40% to 60% lighter than marine plywood



  • water absorption less than 1.5% by weight

  • will not rot

The Coosa Advantage


For over 20 years, Coosa Composites has provided innovative panel solutions for use in a wide variety of industries. Our specialized panels are constructed with high-density, closed-cell, polyurethane foam impregnated with layers of fiberglass to serve as a strong, reliable alternative to plywood and other traditional unreinforced core materials. Coosa’s fiberglass panels are durable and can withstand even the harshest environmental conditions. The unique construction of Coosa panels provides multiple advantages over honeycomb, unreinforced plastics or foams, wood and other traditional sandwich core panels.

BW exposed 2022

Composite Board System


Coosa Composites offers a versatile Composite Board System made with fiberglass and designed to meet the demands of various industries. Our composite boards provide exceptional strength, durability, and resistance to water absorption. Whether you're in marine, construction, or transportation, our Composite Board System is a superior choice for your projects.

About Coosa Composites


Our roots began in the marine industry at a time when most boats still contained a substantial amount of wood below the waterline, making them highly susceptible to rot. Coosa Composites revolutionized the industry by replacing the traditional wood structural components with our composite panels.

It wasn’t long before other industries recognized the value in Coosa’s fiberglass composite panels. Today, we support customers from a multitude of different industries who benefit from the lightweight, no rot, exceptionally strong and durable qualities of our Coosa panels.

From our manufacturing plant in Alabama, we have shipped composite panels to customers and distributors throughout the Americas, Australia, the Caribbean, Africa, Europe, the Middle East and Asia, and our footprint continues to grow.



As manufacturers become increasingly focused on alternative technologies to reduce weight, increase service life, and eliminate costly mid-life replacement or repairs, Coosa offers the ideal fiberglass structural panels to radically change the way buses, RVs, trailers, emergency vehicles, shuttle vans, campers, caravans, and other vehicles are designed and built.


For more than 20 years, Coosa Composites has provided the experience and materials to OEM boat manufacturers and repair yards to eliminate wood and its associated issues from all classes of boats –from small skiffs to large yachts; optimizing vessels for weight, strength, and reducing unnecessary repairs inherent in inferior wood products previously prevalent in marine construction. There are estimated to be more than 200,000 boats on the water containing Coosa’s specialized panels.


There is now wide acceptance in the architectural and construction industries of fiberglass composite panels as an innovative material for creating aesthetically beautiful and durable structures. Coosa’s panels, being essentially impervious to water, have been used in a wide range of buildings because of their ability to eliminate rot and reduce weight, thereby lowering the cost of installation, and offering superior durability and resilience. Coosa products are especially appropriate for cladding, facades, and high moisture areas.