No, traditional tile types such as porcelain, ceramic, and natural stone tile should not be installed without grout. The addition of grout keeps dirt and debris from accumulating underneath the tiles and causing expansion or movement. 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,
stain-resistant, and
no sealant required. The Home Depot's professional installers will help you choose the grout that best fits your space.