Each 6x3 roll of Pyramid Acoustic Foam covers an area of 18 sqft :

BEST FOR SOUND ABSORPTION AND ECHO REDUCTION: Pyramid Acoustic Foam Panels are made with original acoustic polyurethane open cell technology. The unique four-sided design increases the surface area of the material, resulting in effective sound absorption and acoustic treatment.
ROOM ACOUSTICS: A 100% wall coverage will improve your sound quality significantly, whereas a limited wall coverage would only result in acoustic treatment of the space.
SPECIFICATIONS: The NRC of this product is 0.65, as tested by ARAI under the compliance of ASTM C-423/ISO 345. Density of the product is 50kg/m3, which is not available with any other brand in the market. Each roll is 6' x 3' with a thickness of 1". This product is free of chemicals, toxins and odour.
APPLICATION: Pyramid Acoustic Foam of 1” thickness is best to control mid and high-frequency sound in smaller recording studios, control rooms, offices, home studios, home theatres, home offices, hotel rooms, machine rooms, practice rooms, and classrooms.
WARRANTY & CERTIFICATION: MMT Acoustix® offers a warranty of 1 year on every product and each one of them is certified by SGS, ARAI, and ISO for their quality and customer satisfaction.

Pyramid Acoustic Foam Panel | 6 x 3 feet | European Blue | 1 Roll