Armstrong is expanding its top-selling Alterna line with new sizes and shapes—and the product is now being recommended for wall applications. The new sizes include 12x24-, 8x16- and 8x8-inch selections. Any of the tiles can stand on its own, or be combined to create unique patterns, as well as a more customized look of mixing squares and rectangles. With these additions, there are now five sizes and 118 SKUs in the Alterna line.