Sarana Tile lists Jerica Mix as a 3" x 11" porcelain tile. Residentially it works in kitchens, entry foyers and open-plan living areas. Commercially it is specified for retail floors, restaurant dining rooms and hotel lobbies. The nominal size is 3" x 11", listed metrically as 7.5x28cm. It appears in the Sarana Volume 8 catalogue at page 111. Sarana prices it by the square foot. Porcelain is pressed and fired dense enough to take water and traffic that a wall-grade ceramic could not.