Norsk PVC Vented Drain tiles are ideal for decks, patios, spas, and the garage. The open structure of this floor tile allows dirt and liquids to flow underneath the tile. Our patented mushroom tooth design enables our Vented interlocking flooring to be used in combination with any other Norsk™ tile products to create a unique interlocking floor to suit your personal taste. Each (6) pack box covers 13.95 sq. ft. and weighs about 17 lbs. per box. Norsk vented interlocking floors feature ease of installation, durability and ease of maintenance.