Pro Sand is a 24" x 24" porcelain tile with rectified edges, cut square after firing so the grout joint can close to about an eighth of an inch. Porcelain is pressed and fired denser than ceramic, which is what lets it take water, frost and daily traffic. A polished face reads brighter than a matte tile of the same colour, and shows footmarks sooner. Porcelain of this density suits floors and walls through the home. At this size the grout lines fall further apart, which makes a room look larger. Order the area you are covering plus about ten percent for cuts and waste.