Description Ashlar York Stone offers 10 different sizes to select from, ranging from 12″ x 12″ to 36″ x 36″, and two sizes available in Thin Flex. We also offer a Ashlar York Stone Package that includes 10 pieces of every variety. Additionally, we offer the Ashlar York Stone Package that includes the Proline Recommended Stamping Tools and a selection of Accessories needed for your project at a package savings.