Adding a pencil liner will give flair to your new design. To complete this process, you will need to choose a finishing piece suitable for your area of application. It’s worth noting that, like standard tiles, certain edge material is suitable for shower walls but not floors. Others are rated for both surfaces while some options can be installed in the bathroom but not the steam room. When shopping online, make sure to check “Area of Use” to ensure the product lines up well with your design needs.