We are doing an 88 inch double vanity with towers (the towers are 14" wide and 9" deep). Our two oval undermount sinks are the Kohler Verticyl 17 x 14 which is the same size as the mid-size Caxton. I think that should be enough elbow room both between the sinks and on the outer ends. By the way, has anyone used any of the Verticyl sinks, either oval, round or rectangle? They are straight-sided and flat-bottomed. I worry a bit about how well the water will drain but they are so sharp looking......

Cut out some paper rectangles in various sizes (18", 24", 28", 32", and 36"). Tape them up one at a time and see which size seems right. When I did this in a similar situation, it was really helpful. I could see immediately that a 36" fixture seemed perfect for one 5' vanity, but was way too small for another 7' vanity.

It'll be fine. Leaves a foot on each end, so it will look nice and uncluttered. Most multi-light bars over the mirror actually put out too much light, IMO. I have a three light over a 36, and use 20 watt bulbs in it. Anything more is too much. The trend today is side lighting, which really is more flattering-- hides the crows feet and wrinkles until you enter the real lit-from-above world, at which time you look like you again. But it would be very tight given the size of your mirror.

Thanks all. Annz.. the room is roughly 10 x 10, not counting the fairly large shower. and there is a skylight, so the room looks pretty big even with the new corner tub ( it did not have a tub before only the long vanity and a dressing table). I am painting the room today, Valspar Soul Chocolate, white trim, light khaki-ish color ceiling. Fixtures are white, tile is beigey. Gee, it looks better than it sounds. Patricia./.. thanks, I kept thinking '2/3' measurements formula, but i was guessing. it just seemed a 4 light fixture was too big, but there are 3-light fixtures that are not as long as the one i bought. I did see one that was 19 1/2 inches long that i liked. So, I will get the room painted today and hold the mirror and fixture up there. i think the mirror looks better horizontal, that would be the 38" length. Thanks again