Porcelain floor tile, a form of tile similar to Ceramic Tile, is considerably more durable, dense, pure and water resistant than Ceramic. The toughness of Porcelain puts this material in a category among the more robust flooring options on the market today. The high density levels of Porcelain make it highly resistant to impact, and it’s solid chemistry has been a well suited material for commercial applications. After scientific analysis of Porcelain floor tile has been performed, the hardness level of Porcelain is between four and five on the PEI rating chart. This range makes it economical to use in high volume foot traffic, walkways and commercial hallways. Its ability to withstand staining and discoloration is also a contributing factor to it’s commercial appeal. Porcelain is kiln-fired and glazed, and that’s a big factor in its structural capabilities.