White 3-by-6-inch tiles, commonly known as subway tiles, are a staple of kitchen and bathroom design. It's no surprise that homeowners and designers both love this classic tile: It's affordable and uncontroversial -- and best of all, it's usually in stock.
White subway tile is ever popular, but a style that has been gaining in popularity in recent years is to pair white subway tile with dark gray grout in a running-brick pattern. The resulting look defines the outlines of each tile, adding depth and interest to a space. The wider set the tiles are, the more pronounced the outline effect becomes and the bolder the look.
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