Tile
The floor tile in this picture is Romano Greige porcelain tile from Iris U.S.. The tiles shown are 24"x48" but they come in smaller sizes as well. Larger tile sizes are becoming very popular for large, open spaces.
The Romano Greige is a darker marble look but this same collection has lighter marble looks in white and off white colors as well. This tile can be purchased from Midwest Tile, Marble & Granite, Inc.