Kayu Batu Hardwood Deck Tiles are made from clear-grade red balau, a hardwood native to Southeast Asia. The company says the wood is obtained only from countries that practice sustainable forestry. Tiles come in two sizes, 20 inches square and 40 inches square (20-inch tiles are available with either a smooth or a reeded face), and can be used to finish balconies, porches, pool decks, walkways, and gardens by connecting them together with aluminum clips—no adhesive or additional fasteners required. The tiles can be left to weather to a silver color or treated with a penetrating stain. Kayu International, 888.558.5298, kayu.com