We have chosen a groutable vinyl tile that looks like stone and comes in 3 sizes: 12x12, 12x24 and 16x16 to do our kitchen, bathroom and connecting hallway. Should we use the same size tile throughout? I like the 12x24 for the kitchen but was thinking to switch to the 12x12 square tile for the bathroom. The main floor area of the kitchen is 7'x 16', hallway 3'8" x 16' and bathroom 3'3" x 8'6". I can transition at either the kitchen/hallway or bathroom/hallway easily.