What is the difference between standard ceramic tiles and porcelain tiles?
Tile terminology can be confusing. Most types of tiles that are made from clay or a mixture of clay and other materials, then kiln-fired, are considered to be a part of the larger classification called Ceramic Tiles. These tiles can be split into two groups, porcelain tiles and non-porcelain tiles. These non-porcelain tiles are frequently referred to as ceramic tiles by themselves, separate from porcelain tiles. Ceramic or non-porcelain tiles are generally made from red or white clay and fired in a kiln. They are almost always finished with a durable glaze. This glaze carries the color and pattern. These tiles are used in both wall tile and floor tile applications, are softer and easier to cut than porcelain, and usually carry a 0 to 3 PEI rating. Non-porcelain ceramic tiles are usually suitable for very light to moderate traffic and generally have a relatively high water absorption rating making them less frost resistant. They are more prone to wear and chipping than porcelain tiles.
