Anchor Bay Tile. Solana 3-by-6-inch glass subway tiles are available in a variety of colors and are ideal for backsplashes, showers, and bathrooms. Measuring 5/16 of an inch thick, the tiles are made from first-quality glass raw materials, yielding a consistency and color evenness from tile to tile. The maker says Solana tiles are always in stock and ready for shipment. 888.260.7371.