Premium Grade White Thassos Marble Chair Rail Tile. Greek Thassos White Pure White Marble Honed 2 1/2 x 12 Chair Rail Wall and Floor Tiles are perfect for any residential / commercial projects. The Thassos White Marble 2-1/2x12 Chair Rail Molding Tile can be used for kitchen backsplash, bathroom flooring, shower surround, dining room, hall, etc. Our timeless Matte White Thassos Marble Chair Rail Moulding Tile with a large selection of coordinating products is available and includes hexagon, herringbone, basketweave mosaics, 12x12, 18x18, 24x24, subway Tile, borders, baseboards, and more.