Limestone tile from Portland Direct is of the highest quality, designed for refined look and high performance. And because Portland Direct delivers limestone tile directly from where it is quarried and cut, customers looking for the best in natural stone tile gain the best price, and lose nothing of the quality which is expected in the best limestone tile to be found anywhere in the world.Our Limestone Flooring Limestone flooring is an elegant and sophisticated type of flooring. If you want to add a touch of natural stone and create a beautiful atmosphere, limestone tiles are the foundation for setting the tone of the room. This type of flooring has many benefits from aesthetics, to durability, to versatility, and much more. Limestone has been used in famous buildings throughout history and continues to be a popular material today, especially for flooring.