Instead of using MDF or a hardwood baseboard in the wet areas of your home, such as a bathroom, laundry room or mudroom, consider using a tile baseboard. Tile is more water resistant and durable and if detailed correctly, can look really sharp.
First, you need to use the same tile as the floor tile for the baseboard. Ideally, it should be a larger format tile (12 X 12 or larger) and should be a solid color throughout – so either a natural stone or a porcelain (a glazed ceramic will not look very good unless it has a factory edge).
The grout lines from the floor tile should extend and line up with the grout lines of the tile base board. We also recommend tiling the toe kick of any millwork in these wet areas. The tile baseboard height should be matched to the height of the toe kick of any millwork so there is a continuous datum line that runs on the walls and then under any of the millwork – usually this means the tile base will be about 4 inches in height.