This gray matte Astoria Gris Porcelain Tile is 16 x 48.Straight or rectified tiles are cut so that they can be installed with minimal grout lines and give a very clean look. PEI measures a tile's durability and ability to withstand foot traffic, on a scale of 1-5. This tile, rated at 4 PEI, can withstand moderate to heavy traffic and is suitable for all residential and medium commercial floor and wall applications. This product can be installed on a shower wall. This product can be installed on