A salesperson claimed his tile was a group IV. What does that mean?

A. The following classifications are based on an agreement between European ceramic tile manufacturers and installers and have been adopted world wide. Group I Light Residential Traffic Tiles suited to areas of the home, such as baths or bedrooms where soft footwear is worn. Group II Moderate Residential Traffic Tiles for general resident areas, except kitchens and entrance halls or other areas subject to direct outdoor traffic. Group III Residential Traffic Tiles suited to maximum residential traffic in all areas of the home. Group IV Commercial Traffic Tiles suited to public areas where moderate to heavy traffic occurs (such as hotel lobbies, restaurants, Supermarkets and banks). Preparing the surface After the selection, the most important element of a successful installation is the condition of the surface to be tiled. A properly prepared surface is smooth, stable and free of any defects. It also satisfies the requirements of any special conditions that may exist, such as ...  more

A. The following classifications are based on an agreement between European ceramic tile manufacturers and installers and have been adopted world wide. Group I Light Residential Traffic Tiles suited to areas of the home, such as baths or bedrooms where soft footwear is worn. Group II Moderate Residential Traffic Tiles for general resident areas, except kitchens and entrance halls or other areas subject to direct outdoor traffic. Group III Residential Traffic Tiles suited to maximum residential traffic in all areas of the home. Group IV Commercial Traffic Tiles suited to public areas where moderate to heavy traffic occurs (such as hotel lobbies, restaurants, Supermarkets and banks). Preparing the surface After the selection, the most important element of a successful installation is the condition of the surface to be tiled. A properly prepared surface is smooth, stable and free of any defects.  more