Grout is the unsung hero of your shower floor, filling the gaps between tiles and preventing water from seeping into the subfloor. Over time, however, it can cr...
Grout is the unsung hero of your shower floor, filling the gaps between tiles and preventing water from seeping into the subfloor. Over time, however, it can crack, stain, or disappear, leading to leaks and a less-than-impressive appearance. Don't let this happen to your shower! Learn how to grout a shower floor like a pro with our step-by-step guide and accompanying video.


Grout plays a crucial role in the longevity and functionality of your shower. It seals the space between tiles, preventing water and moisture from penetrating the subfloor and causing damage. Additionally, grout provides a finished look to your shower, enhancing its aesthetic appeal.


Before you begin, ensure your shower floor is clean, dry, and free of any old grout or debris. If you're replacing old grout, use a grout removal tool to scrape it out. Allow the surface to dry completely before proceeding.
If your shower floor doesn't have a waterproofing membrane, consider applying one before grouting. This will help prevent water from seeping through the grout joints and causing damage. Follow the manufacturer's instructions for application.

Mix the grout according to the manufacturer's instructions, typically combining it with water until it reaches a smooth, peanut butter-like consistency. Be sure to mix thoroughly to eliminate any lumps. If you're using sanded grout, ensure the sand is evenly distributed throughout the mixture.

Using a grout float, apply the grout diagonally across the shower floor tiles, working in small sections at a time. Force the grout into the joints, ensuring they're completely filled. Be careful not to drop the grout onto the tile surface, as it can be difficult to remove later.




















After applying the grout, use a damp sponge to wipe away any excess from the tile surface. Be careful not to remove the grout from the joints. Allow the grout to set for about 15-30 minutes, then use a clean, damp sponge to remove any remaining haze from the tile surface.
Once the grout has cured according to the manufacturer's instructions (usually 72 hours), apply a grout sealer to protect it from moisture and stains. Follow the manufacturer's instructions for application and allow it to dry completely before using the shower.
To maintain the longevity and appearance of your grout, clean your shower regularly and address any stains or cracks promptly. Consider using a grout cleaner and sealer periodically to keep your grout looking its best.
For a visual demonstration of these steps, watch our how to grout a shower floor video. Happy grouting!