Dimensions Gris porcelain 4 in. x 12 in. Tile looks like traditional poured gray concrete, but has the easy care and durability of porcelain tile. Contemporary, elegant and sleek, these tiles are ideal for a contemporary design. It puts the finishing touch on feature walls, backsplashes, shower surrounds and other vertical installations in homes and light-commercial settings. Whether you’re planning a remodel or building a new house, choose this ceramic bullnose tile for affordable luxury.