If the tiles are already glazed, flip them over and look at the unglazed underside.
Glazed porcelain tiles are much harder and are more resistant to wear and damage than non-porcelain ceramic tiles.
Some cheap, low-quality porcelain tiles may not have the color mixed through the body of the tile. Avoid purchasing these tiles.
As a broad rule of thumb, porcelain tile usually costs approximately 60% more than ceramic tile.
Ceramic tile, on the other hand, is most often installed as flooring in high-traffic areas such as an entry way or a heavily-used hallway.
Stains on ceramic tiles could also come from foot traffic (dirt, mud, snow, etc. ) if the tiles are located in an entryway.
If there is any discrepancy between the size of the tiles, you’re dealing with ceramic tile.
