Carrara Marble Crown Moulding. Carrara Polished 2 x 12 Crown Moulding are perfect for any interior/exterior projects. The 2x12 Carrara White Marble Chair Rail Moulding tiles can be used for a kitchen backsplash, bathroom flooring, shower surround, dining room, hall. Our Premium White Carrera Marble Chair Rail Moulding tiles with a large selection of coordinating products is available and includes hexagon, herringbone, basketweave mosaics, 12x12, 18x18, 24x24, subway tiles, borders, baseboards, and more.