Homogeneous tile: a form of ceramic tile composed of fine porcelain clays but fired at much higher temperatures than ceramic tile. This process makes homogeneous tiles denser, harder, less porous and therefore less prone to moisture and stain absorption than ceramic tiles.

Mosaic tiles: a classification of tiles that are usually 2 inch (5 cm) or smaller pieces.

Porcelain tiles: with a water absorption rate of less than 0.5 percent that are used to cover floors and walls. They can either be unglazed or glazed. Porcelain is denser and therefore heavier to handle; it is generally more expensive. Being harder, it is harder to cut and drill, which may make fitting harder and more expensive. Polished porcelain may need sealing, where ordinary glazed tiles do not.