North Grey is a 12" x 23.6" porcelain tile from Sarana Tile. On the residential side that covers 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 12" x 23.6", listed metrically as 30x60cm. It is supplied in boxes of 8 pieces covering 15.5 sq ft, a box weight of 59.5 lbs and 40 boxes to a pallet, 620 sq ft in total. It appears in the Sarana Volume 8 catalogue at page 141. Sarana prices it by the square foot.