Cork floating floor planks with built-in underlayment for commercial and residential use. 36" x 12" x 1/2" Self-locking planks install without glue. Prefinished with five coats u.v.-cured acrylic, contains no volatile organic compounds. Click for prices and shipping quotes Download complete technical specifications in pdf format Download installation instructions in pdf format Triplex plank consists of: Composite cork layer: 1/8", density 28 lb / ft3 Interlocking layer: 1/4" mdf, density 45 lb / ft3 Underlayment layer: 5/64 cork, density 13 lb / ft3 Comprehensive instructions; toll-free access to technical installation specialist. Acoustical: 8" concrete slab: STC:   58db.      IIC   68db      NC   30db Acoustical: 8" concrete slab with drop ceiling: STC:  60db      IIC   73db      NC    30db Questions, additional data or installation information: techinfo@corkdirect.com (800) 344-CORK (2675)