thickness: – 5.5 mm, width – 5.83″, length – 48″, box size – 23.31 sq. ft. Construction – SPC (Stone Product Composite) Core w/0.5 mm (20 mil) Wear Layer & 1.5 mm EVA Pad. Limited 30-Year Residential and 10-Year Commercial Warranty. Installation – floating, glue-down.