Board Size: 138mm x 23mm x 3600mm Whiteriver Ultrashield Naturale decking is a high performance, eco friendly alternative which offers the warmth and appeal of natural hardwoods in 7 deluxe colours: Teak, Silver Grey, Antique, Walnut, Cedar, Sapele and Graphite. We have just added two wider boards to the Naturale collection. They are available in 2 colours, Pebble Grey and Oak Mist. Whiteriver Ultrashield will not splinter or crack, due to its protective shield, making your home safer for bare feet, small children and pets while also protecting against rot, cracking or insect damage.