No, traditional tile types such as porcelain, natural stone, and ceramic tile should not be installed without grout. The addition of grout ensures that dirt and debris do not accumulate underneath the tiles and cause movement or expansion. Grout also keeps moisture from penetrating under the tiles' surface, which can shorten the lifespan of the installation and product. Grout is available in several varieties, including
mold- and mildew-resistant,
no sealant required, and
stain-resistant. The Home Depot's professional installers can assist you in selecting the type of grout that best fits your space.