COREtec Plus Premium XL Grande – Grande Marina Oak COREtec Plus Premium XL Grande is one of the most comfortableluxury vinyl flooring applications on the market today. The COREtec patented construction has created a softer, warmer, and quieter floor than any of it\’s leading competitors. This collection is 100% waterproof so it can be installed in the wettest locations and still will not swell or buckle. Each plank has an attached cork underlayment that is naturally resistant to odor causing mold and mildew. Specifications: SKU: VV662-07012 Plank Dimensions: 9\” x lengths of 28\”, 55\” and 82\” x 15 mm Actual Dimensions Width: 8.97\” Actual Dimensions Length:Multiple Lengths 27.55\”, 55.11\” and 82.67\” Sq. Ft./Carton: 20.67 Pieces Per Box: 36 Box Weight: 63.14 LBS Edge Profile: Enhanced Painted Bevell Core: Waterproof Foamed Core Attached Underlayment: Attached Cork Installation Level:Above, On, Below Installation Method: Floating, Direct Glue Residential Warranty:Limited Lifetim Structure Warranty: Limited 10 Year Medium Commercial Waterproof Warranty: Limited 10 Year Medium Commercial Petproof Warranty:Limited 10 Year Medium Commercial Commercial Warranty:Limited 10 Year Medium Commercial Environmental Certifications:GreenGuard (Certification, Gold, Private Label) Certified