Porcelain is an 11.7" x 12.4" matte porcelain mosaic from Sarana Tile. It is finished with a matte face that holds light rather than throwing it back. 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 11.7" x 12.4", listed metrically as 29.6x31.5cm. Each sheet covers roughly 1 sq ft. It appears in the Sarana Volume 8 catalogue at page 7. It arrives mesh-mounted, so the spacing holds while the sheet is set and it trims down to meet a corner or a niche. Sarana prices it by the sheet.