A successful shower tile installation project starts with a solid foundation. The shower often starts with tile on the floor that extends up the expanse of the wall, making the entire area water resistant and consistent in appearance. This is especially popular as walk-in shower tiles. Tiles designed to extend from the floor to the wall are medium in scale and come in various sizes such as rectangular and square tiles. They also come in a wide range of colours. Find the shape that fits your space. See all styles.