A drawing of a piece of closed cell flotation foam. Boat Cushion foam, primarily used for exterior applications. The most common use is for cockpit cushions on sailboats. Covering the closed cell foam, with Phiffertex or Furniture Weight Sunbrella makes for a very nice and durable cushion.
This is the foam for Cockpit or other exterior Cushions for your boat.

Waterproof Closed Cell Floatation Foam for Boating Applications.

Closed cell foam is often used for Cockpit Cushions in Sailboats.


Foam is used in marine applications to stiffen, strengthen and soften everything from seat cushions to headliners to beds.Closed Cell Foam Cushions are absolutely the best for exterior marine applications. Anyone doing marine upholstery should know their foam options, properties and applications. Each type of foam is different. You want to use the right foam for your project. Foam is a substance that is formed by trapping pockets of gas in a liquid or solid. It comes in four major categories. Only two of which are applicable to most people. In a closed cell foam, the gas forms discrete pockets, each completely surrounded by the solid material.So that water cannot penetrate the foam. The foam is lighter than water, so it floats. In other words: Flotation Foam! Beacon Fabric & Notions also has conventional upholstery foam for use as a Boat Cushion Foam. We have a full line of upholstery supplies for boats.

If you have any questions about this foam or how to use it, Contact Customer Service.

Please note that this foam is not returnable.

Closed Cell Foam, 24" X 56" X 2"
 each 
Please note that this is a cut good and is not returnable.

Price:   $131.99    

Closed Cell Foam 36" X 56" X 2"
 each 
   Please note that this is a cut good and is not returnable.

Price:   $196.99    

Closed Cell Foam, 48" X 56" X 2"
 each 
 Please note that this is a cut good and is not returnable.

Price:   $259.99    

Closed Cell Foam, 60" X 56" X 2"
 each 
  Please note that this is a cut good and is not returnable.

Price:   $324.99    

Closed Cell Foam, 72" X 56" X 2"
   Please note that this is a cut good and is not returnable.

Price:   $389.99