Armstrong Alterna is a premium limestone groutable flooring tile is available in 16” x 16” tiles. Alterna also comes in 12” x 12” tiles in some select colors and styles. Armstrong Alterna is a great alternative to natural stone, ceramic, and procelain tile. Alterna is also made from Limestone which is abundant in the USA and the Alterna product is made in the United States and is evironmentally friendly. Please browse the collection below and call our sales staff with any questions about this product.