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Coosa Board

Coosa Board is high-density polyurethane foam with reinforced layers of fiberglass. It is truly the premier decking & transom material in the marine industry. There is a reason boat builders put "Certified Coosa Board" decals on their transom! » Read More

Learn More About Coosa Boards

Contents


What is Coosa Board?

 It's a no-rot composite sheet material primarily used for coring and decking applications.  It’s composed of high-density polyurethane foam reinforced with layers of woven roving and continuous strand fiberglass. It’s structurally superior, doesn’t absorb water, and weighs 30-40% less than marine plywood.


Advantages of Coosa Board

  • 30%-40% lighter than plywood
  • No water rot or insect infestation
  • Less than 1% water absorption
  • Mold, mildew & algae resistant
  • No special maintenance required
  • Sanded for easy lamination
  • Easily fabricated with standard woodworking tools
Coosa board being used to replace the transom in a 1978 Alumacraft bass boat.

Limitations of Coosa Board

Coosa is ideal as a coring material but does have a few limitations. It’s not UV stabilized and will discolor if exposed to direct sunlight; it won’t deteriorate structurally but will become chalky and washed out. Read More


What Are Popular Uses?

Coosa is great for structural applications such as:


Fabrication

With 11 CNC Routers and a design team at the ready, all you need is to send a drawing with dimensions or template for your project to Boat Outfitters and let us take the lead. If you’re more of a do-it-yourselfer Coosa composite board is easy to work with using common woodworking tools and can be ordered in third, half, and full sheets.

Our full sheet size is 48” x 96” which is large enough for most projects. If your project is bigger than 96”, like an oversized transom, don’t worry - we can use a puzzle joint to connect two panels for your exact size needs.


Commonly Asked Questions About Coosa

When replacing plywood decking, what thickness should I use? (show/hide)

How to install Coosa Board? (show/hide)

Do I have to encapsulate the Coosa in fiberglass and resin? (show/hide)

What types of resins are compatible with Coosa? (show/hide)

What thickness and sizes are available? (show/hide)

How do I cut Coosa panels? (show/hide)

Can Coosa Board get wet? (show/hide)

Can Coosa Board be bent? (show/hide)

Can Coosa Board be shaved down or shaped? (show/hide)

Can you paint Coosa Board? (show/hide)

Can you fiberglass Coosa Board? (show/hide)

Can Coosa Board be used for boat stringers? (show/hide)

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