Porcelain tiles are made of porcelain clay that has been fired at high heat. Porcelain tile is sold in matte, polished or glazed finishes. Glazed tile has a layer of glaze, which is usually colored, applied during the manufacturing process. This gives the tiles a high-gloss appearance.
Porcelain tiles are usually sold as 6-inch, 12-inch or 18-inch squares. They come in boxes marked according to how many square feet each box of tile will cover. If you are buying these tiles, keep in mind that some may get broken during installation. It is a good idea to buy more than you think you\'ll need.