On paper the double sink looks ideal. But let's walk through this two-sided argument.
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.
“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.”
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 endless possibilities.
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.
This sort of double sink performs duties for two people while acting like one sink underneath with its single drain, which leads us to …
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.
More storage. You can have more storage underneath if there's only one drainpipe. If you’re the kind of person who loves to pull out every bit of makeup, you’re going to get frustrated if you don't have enough room for it because of that extra sink.