Rockboard 80 boards have a dimension of 24" x 48" x 2" inches and are manufactured by Roxul. Order a Case of 4
pieces on this page.
Rockboard 80 is rigid mineral wool board with a density of 8 pounds per cubic foot and is a great option for acoustic projects that require a rigid material. It’s also used in some bass trap designs.
For smaller quantities, try Roxul Rockboard 80 Single Pieces.
For more detailed information, see Selecting the Right Acoustic Material for a comparison of these materials.