72001Q Features: -Type: Underlayment roll.-Natural cork from Portugal.-Sound and crack isolation underlayment for tile, laminate, floated and glue down wood floors.-Maximize sound reduction.-Outstanding sound barrier, cork reduces sound transmission from both surface of the floor.-Natural cork increases the effectiveness of under floor heating systems.-Natural substance, cork helps repel insects, pests, mites and termites.-Naturally hypoallergenic and cork contributes to creating healthy indoor air quality. Specifications: -Qty: 150 sq. ft. (25 sheets per order).-STC 89 and IIC 88 with 6" cement slab and suspended ceiling. Dimensions: -Product weight: 3.1 lbs.-Sheet width: 24".-Sheet length: 36".-Sheet thickness: 0.22".