Once you know how much space you have, the next big decision is layout. Do you need one sink or two? Should the vanity stand on the floor or float on the wall? And which type of sink suits the way you use your bathroom?
This guide compares single and double sink vanities, freestanding and floating designs, and the most common sink styles, so you can choose the layout that works for your household.
Single Sink Vanity: Pros and Cons
A single sink vanity is the most popular choice for most bathrooms, and for good reason.
Why choose a single sink
- More counter space. One sink leaves more room for toiletries, a soap dispenser and everyday essentials.
- Fits any bathroom size. Single vanities range from compact 18" models to 60" and beyond.
- Lower cost. You only need one faucet, one drain and one set of plumbing.
- More storage. Without a second sink and drain underneath, there's more room for drawers.
When a single sink may not be enough
If two people regularly get ready at the same time, a single sink can lead to waiting in line on busy mornings.
Best for: powder rooms, guest baths, kids' bathrooms, and primary bathrooms used by one person at a time.
Double Sink Vanity: Pros and Cons
A double sink vanity, often called a double vanity, gives two people their own sink and space.
Why choose a double sink
- No more waiting. Two people can brush their teeth and get ready side by side.
- Personal space. Each person gets their own sink area and storage.
- Resale value. Double vanities are a popular feature in primary bathrooms.
Things to consider
- Space: You'll want at least 60 inches of width for a comfortable double vanity; 72 inches is ideal.
- Plumbing: Two sinks need two drains and two sets of supply lines, which can add to installation cost if you're switching from a single sink.
- Counter space: On narrower double vanities, the second sink takes up counter space you might otherwise use.
Best for: shared primary bathrooms, couples, and family bathrooms used by more than one person in the morning.
Single or Double? A Quick Comparison
| Single sink | Double sink | |
|---|---|---|
| Minimum width | 18" | About 60" (48" is tight) |
| Counter space | More | Less per person |
| Morning routine for two | Shared | Side by side |
| Plumbing | One drain | Two drains |
| Faucets needed | One | Two |
Tip: Have a large space but don't need two sinks? A wide single sink vanity (55"–72") gives you a huge amount of counter space and storage. It's a great choice for one person who wants room to spread out.
Sink Position: Center, Left or Right
On a single vanity, the sink is usually in the center. Some vanities offer an offset sink on the left or right. An offset sink can:
- Keep the sink farther from a toilet, giving you more elbow room
- Line up with existing plumbing that isn't centered on the wall
- Create one large section of uninterrupted counter space
When ordering a left- or right-sink vanity, choose the side as you'd see it standing in front of the vanity.
Freestanding vs. Floating Vanities
Freestanding vanities
A freestanding vanity sits on the floor on legs or a solid base, like a piece of furniture.
- Easy installation: no need to anchor it into wall studs
- Works with most plumbing: ideal for replacing an existing vanity
- More storage: cabinets can run all the way to the floor
- Many styles: from traditional to modern
Floating (wall-mounted) vanities
A floating vanity mounts directly to the wall, leaving open floor space underneath.
- Makes small bathrooms look bigger: visible floor space opens up the room
- Easy to clean: sweep and mop right underneath
- Modern look: clean, minimal and contemporary
- Adjustable height: you can mount it at the height that suits you
Floating vanities need solid wall support (wall studs or blocking) and plumbing that comes out of the wall rather than the floor. If you're unsure, ask your plumber or contractor before ordering.
Corner Vanities for Tight Spaces
A corner vanity is shaped to fit where two walls meet. It's a smart solution for small bathrooms, powder rooms and awkward layouts where a standard vanity would block the door or walkway.
Undermount vs. Vessel vs. Integrated Sinks
The type of sink affects both the look and the daily cleaning of your vanity.
- Undermount sink: Mounted below the countertop, with no rim to catch grime. You can wipe water and crumbs straight into the sink. A classic, practical choice that works with stone and marble tops.
- Vessel sink: A bowl that sits on top of the counter. Vessel sinks make a bold design statement and are popular in powder rooms. Pair them with a tall vessel faucet and a slightly lower vanity.
- Integrated sink: The sink and countertop are one continuous piece, usually ceramic, resin or glass. There are no seams to clean, which makes it a great low-maintenance option for busy family bathrooms.
Don't Forget the Faucet Holes
Before you buy a faucet, check how many holes your vanity top is drilled for:
- Single-hole: fits a single-handle faucet.
- 3-hole, 8" spread (widespread): fits a faucet with two separate handles and a spout.
- 3-hole, 4" centerset: fits a compact faucet with handles and spout on one base.
Each vanity's specifications list its faucet drilling, so you can match it with the right faucet.
Find Your Perfect Layout
- Shop single sink vanities
- Shop double sink vanities
- Shop floating vanities
- Shop freestanding vanities
Have questions about plumbing, sizing or which layout fits your bathroom? Our team is happy to help. Call (888) 253-7642 (Mon–Sat, 9am–6pm Eastern) or start a chat on our site.
Frequently Asked Questions
Is a double vanity worth it?
If two people use the bathroom at the same time and you have at least 60 inches of wall space, a double vanity is usually worth it. If space is tight or one person uses the bathroom, a single vanity gives you more counter space.
Can I replace a single vanity with a double vanity?
Yes, but you'll likely need a plumber to add a second drain and supply lines. Factor that into your budget.
Are floating vanities sturdy?
Yes, when they're mounted correctly into wall studs or blocking. Always follow the manufacturer's installation instructions.
Which sink type is easiest to clean?
Integrated and undermount sinks are the easiest to keep clean because there's no rim or seam between the sink and the countertop.
Keep reading:
Next: Bathroom Vanity Styles Explained
Start here: What Size Vanity Do I Need?
