Order a Case of 6 Owens Corning 705 Rigid Fiberglass Board in 24" x 48" x 1" inch pieces here.
The OC 705 is popular due to the productís strength and rigidity. It is often used in bass trap and sound absorber designs, or as an alternative to 703 rigid fiberglass board when a stronger and more durable surface is desired. Due to the 1" thickness, the 705 does have a lower NRC rating of .065.
If you need 6 or more pieces, use this page for a discounted price and more economical shipping.
For smaller quantities, try Owens Corning 705 Single Pieces.
View Owens Corning Product Information (PDF)
For more detailed information, see Selecting the Right Acoustic Material for a comparison of these materials.