The use of polished and unpolished porcelain tile can create an effective look while cutting down the possibility of slippage. On average a polished tile looses 1 to 2 points for slip resistance, measurement of walking on a flooring surface, and should always be reviewed carefully before specifying in high traffic areas or wet entryways. This is just one way to integrate the two, creating an effective design solution while keeping a mindful eye over safety and the end result!