Sarana Tile lists Hex Grey as a 10" x 10" porcelain tile. Residentially it works in kitchens, entry foyers and open-plan living areas. On commercial jobs it turns up in retail floors, restaurant dining rooms and hotel lobbies. The nominal size is 10" x 10", listed metrically as 25x25cm. It is supplied in boxes of 25 pieces covering 11.19 sq ft. Sarana catalogues it in Volume 8 on page 109. Sarana prices it by the square foot.