An architect discusses the pros and cons of double vs. solo sinks and offers advice for both
Some Benefits of Two Bathroom Vanity Sinks
Personal space. With two sinks, theoretically no one will ever again spit toothpaste on your hand as you’re trying to wash up. Also, your very own sink means you can keep your makeup, moisturizers or shaving kit out as necessary without having your partner knock anything over.
And by having your own designated sink, you don’t have to stare at your partner’s toothpaste residue while you’re brushing your own teeth. Even in the best of partnerships, there are some things that neither of you want to see of the other.
Two sinks can help make you and your partner feel like you’re in a loving, adult relationship rather than siblings fighting over a single faucet.
Some Disadvantages of Two Sinks
“The convenience of two sinks has its tradeoffs to consider,” Hopkins notes.
Cost. It costs more to plumb two sinks than one. Add to that the additional cost of finishes and a larger vanity.
Space. A typical sink basin is about 17 to 19 inches wide. “If there isn’t a solid 6 feet or more available for two sinks, I will counsel clients to stick with just one sink basin,” says Hopkins. “These 6 feet or more will give the minimum 11- to 12-inch buffer needed between basins to keep a couple from banging elbows and crowding each other out.”
Even if you do have a good amount of space, two sinks will eat into counter space that could be used for tasks, displays etc. Two sinks will also double the amount of undercabinet space taken up by the double drain pipes.
If you’ve got ample storage or counter space elsewhere in the bathroom, this space tradeoff may not pose any problems.
Two-sink styles you can both agree on. A prefabricated two-sink vanity is one of the easiest styles to choose and install in a bathroom because of its fixed dimensions. In other words, there’s no guessing if elbow clearance might be an issue for you and your partner. You can tape out the dimensions prior to ordering a vanity to test the sink measurements.
Custom vanities offer even more benefits, as they can be tailored to your exact wishes. But you and your partner have to be willing to work with a designer or cabinetmaker to cull through the possibilities.
You can also use two freestanding pedestal sinks, either for aesthetics or to overcome any space limitations, as they can be put side by side or on separate walls. “Pedestal sinks have made a resurgence in the last 10 to 15 years,” Hopkins says. “As a result, there’s more product available to suit different needs.”
If you don’t need the counter space or storage space in a vanity, two pedestals will create an airy feel that may sway your choice.
The Benefits of the Single Sink
Leaves room for other amenities. “I might push for a couple to install only one sink if there’s a possibility of using that extra space for a separate shower and tub instead,” says Hopkins.
Cost and cleaning. One sink, with one hardware set, is cheaper than two, and one sink is easier to clean than two.
“Couples these days usually prefer the idea of two sinks for one simple reason,” Hopkins says. “They lead busy lives and need access to the bathroom at the same time.” On paper the double sink looks ideal. But let’s walk through this two-sided argument.