Is there a way that you could squeeze another inch of space? I have seen a few 55 inch vanities with two sinks, notably at Restoration Hardware and Pottery Barn to name a few sources. You can also find many more by googling 55 inch vanity.

I think a lot depends on how much counter space you like because obviously you will have less space with two sinks. Also, the two of you might not fit that comfortably in the space at the same time, so that is a consideration, too. I don't know what vanity style you are looking for, but the IKEA Godmorgan vanity packs a lot of storage in a very small footprint. I was pretty impressed with the amount of storage in the drawers. The downside to the Godmorgan is that the available top is a composite material that is not as bullet-proof as some of the other counter top/sink materials.

If you can't squeeze out an inch of space, it might be worthwhile to make a custom vanity.

Personally, I wouldn't put two sinks in anything less than a 6 foot vanity, though I know that a lot of people have them in 5 feet. I think that 55 inches would be way too tight, and you would have very little counter space left over.

I would get one long sink and install 2 faucets on it. I saw a long narrow sink in a kitchen island once. When we were redoing our master bath, I went looking for such a sink and was told there wasn't one. Since then I have seen it again used in a bath with 2 faucets. Loved the look and it takes less counter space.

ikea braviken
ikea norrviken
ikea odensvik

Here are dozens of examples.

http://www.ikea.com/us/en/search/?query=bathroom+bowl
http://www.ikea.com/us/en/search/?query=bathroom+bowl&sorting=price

also
http://www.ikea.com/us/en/search/?query=braviken+bathroom&pageNumber=0

Also : http://www.ikea.com/us/en/search/?query=braviken+bowl

here is one example among many:
http://www.ikea.com/us/en/catalog/products/60148310
Double sink, fitting into 40" of space, and with two holes already drilled for two faucets.

Many Ikea sink combinations match with Ikea Godmorgen cabinets or a frame.
They have drawers underneath.
Compact drain plumbing comes with it.

Scroll through the menu to get 48" wide options in these pages:

E.g. http://www.ikea.com/us/en/catalog/products/S39879833
E.g. http://www.ikea.com/us/en/catalog/products/S29862036 GODMORGON/ BREDVIKEN
E.g. http://www.ikea.com/us/en/catalog/products/S09879504 GODMORGON/ VITVIKEN

A frame, without drawers underneath:
MOLGER/ VITVIKEN

I agree with Terriks, you do sacrifice counter space for the dual sinks. It will help if you install smaller sinks if you buy American. That's basically what Ikea does, my DH lived in Sweden for years and says everything is pretty much on a on a smaller scale.

You can do it with several provisions. Slab granite counter with a single trough sink with 2 single hole faucets.

The Ikea Vitviken series is really interesting. Looks like it is ceramic rather than the composite they offered last year for Godmorgen... and the sinks are smaller. The 55" vanity top has LOTS of counter space!!! I'm going to go look at them in person for my daughter's bathroom renovation. I prefer ceramic in a kids/teens bath for upkeep and longevity reasons.

For a master bath, one nice sink is better than two "dinks".

I wouldn't consider two sinks in 55" unless I had a seperate vanity table or counter and didn't need the sink counter at all for hair and makeup. Search for images of designer Sarah Richardson's bathrooms - she creates drop dead masters all the time with single sinks.

Here is a link that might be useful: Sarah Richardson baths...maybe this link will work

I'd love to know what OP decided to do!

We bought the Ikea Odensvik/Godmorgan (ceramic/oak) for our small space. I think I'll love it; growing up the bathroom sink was ceramic and I really liked it. In the house DH and I bought (a 1978 house), the sinks are that cultured marble stuff and the one in the mater bathroom is full of cracks. I despise cultured marble.

We're putting in a bunch of extra shelving so the lack of counter space isn't a big deal. We just clutter it up so it's better for us if we don't have an expanse of counter space :-)

Melanie

Candice Olsen always says that couples don't need two sinks, they need two mirrors.

I, too, was trying to squeeze in a second sink to our plan for a new master bath. It was like a weight being lifted off of me when I realized that it really is all unnecessary. I never do my hair or makeup at the sink because I have a vanity and DH shaves in the shower. I've been married to him for 25 years, I think I can stand to brush my teeth in the same sink!

I have the same issue :(
I have been searching everywhere for a 46"-48" long X 12"-16"
and about 8"deep sink. This is for a bathroom so I do not want to use
stainless steel or copper.
The only one I found was over seas/it was a fire clay trough.
Does anyone have any ideas?

THX, Anne

We are remodling a small Master 3/4 bath room. We decided to use a Hastings 100 double sink. It has one basin, about 40" wide, but can handle 2 faucets, so 2 people can work side by side. Its not the best arrangement, but its better than fighting over one sink and one faucet when we get ready in the morning. There are other double sinks that are made to be used side by side. I think Duravit might also have one with 2 separate basins, divided, but right next to each other. We will have our Hastings on an open, chrome legged console and believe that it will expand the appearance of the smallish space because it won't be a solid vanity.

I was looking for the same thing -- my previous vanity was a custom (bad) job at about 55 inches, and I SO desperately wanted a double sink. I didn't end up getting one, choosing to focus on counter space, but I put together this article for people looking for something similar.

Here is a link that might be useful: The Best Small Dual Sink Vanities

Look at Ikea vanities. They have a 48" & 55" double sink vanities.