Concreto Gris Lap. 30x30 is a Spanish porcelain wall and floor tile. It can be used in various room settings including kitchen and restroom. This elegant tile has a unique finish. It is a textured product with a velvet sheen. This classic, grey tile has subtle grey grains that give the porcelain tile a natural stone look. The textured, velvet sheen finish infused with the grey grain gives this grey tile a subtle tone that does not overpower a room.