Owens Corning 705 Rigid Fiberglass Boards (RFB) have a dimension of 24" x 48" x 2" inches.
If you need 4 or more pieces, use this page for a discounted price and more economical shipping.
For smaller quantities, order Owens Corning 705 Single Pieces here.
View Owens Corning Product Information (PDF)
For more detailed information, see Selecting the Right Acoustic Material for a comparison of these materials.