Choose the floating vanity and settle how high its countertop will sit before the wall gets closed. A floating vanity is a vanity cabinet hung on the wall, with open floor underneath. With the cabinet and the height picked, backing can go into the wall right where its mounting points land. Backing is solid wood set inside the wall, between the studs, so the mounting screws have something to hold. The drain and supply lines can be set to come out inside the cabinet.
Leave it until after the wall is finished and the order flips around. The mounting points may miss the studs. Then a finished, tiled wall may have to be opened to add backing. The pipes may come out below the cabinet or beside it, in plain sight, under a cabinet that’s meant to float. The height is a design choice. Make it on paper.
A Floating Vanity Puts Its Weight on the Wall
A floor-standing vanity rests on the floor, and the floor carries the load. A wall-hung one doesn’t. As a general rule it hangs everything on the wall: the cabinet, the top, the sink and whatever you store inside. So the wall needs something solid right where the mounting points land. Drywall alone may not give the screws enough to hold.
The studs in your wall may not land where the cabinet mounts. According to one vanity maker, wood blocking between the studs, cut from standard two-by-fours, can be added when they don’t line up with where the vanity mounts. That blocking is the backing your screws grab.
The same maker says a few things decide how much weight one of these cabinets can hold: the size of the vanity, how it’s built, the mounting hardware, the technique and the quality of the install. Read that as a plan, not a number. The countertop and the sink hang on the wall too, so they belong in the plan with the cabinet. A stone top may change what the wall is being asked to carry.
How High Should a Floating Vanity Hang?
The maker says a wall-hung vanity can be installed at any height. It puts the typical range at about 28 to 36 inches, measured from the floor to the finished top. No base or legs set the number for you. So the height turns into a choice you make on purpose, early, with the layout still on paper.
The guide adds a detail that’s easy to lose. When you mark the vanity’s line on the wall, subtract the thickness of the countertop from the vanity’s finished height. The number that matters to you is the finished top, not the box hanging under it. So choose the top and the sink alongside the cabinet.
Sink style can shift that finished height too. McDaniels has a separate post on how the sink type changes a vanity’s finished height.
Think about who uses the sink every day. If it’s a tall adult and a child, the right number may land somewhere between them. The height also sets how much open floor is left below. The maker notes that the space underneath can hold baskets, a bathroom scale or a child’s step stool.
Why Does the Backing Go In Before the Wall Is Closed?
As a general rule, backing is simplest to add while the studs are still open and you can reach between them. Once the drywall is up and the tile is set, adding it can mean cutting into a finished wall and patching it back. The wall is the hard part, not the wood.
The maker links how long the job runs to one thing: whether the wall needs opening so backing can be set behind the vanity. That’s the hinge. A closed wall turns a mounting question into a patching question.
So the vanity’s width and its mounting height are worth knowing before the wall gets closed. Then the backing can span the spot where the mounting points will land, with room on either side. A tiled wall can be hard to patch so the repair matches, and a patch above the sink doesn’t hide at eye level.
Where Do the Pipes Go Under a Floating Vanity?
As a general rule, they come out of the wall. With no cabinet base sitting on the floor, nothing hides a pipe that rises from below. So the drain and the supply lines need exits that land where the cabinet covers them, and the vanity’s height and width shape where those exits go.
The maker’s install steps begin with the water supply lines and the drainpipe already in place. The cabinet goes up after that. That’s why the pipe exits get settled first: the vanity has to meet them, and moving them later can mean opening the wall again.
Where the drain lands also decides which drawers fit in the sink bay. McDaniels has a separate post on how the drain limits drawers in a vanity’s sink bay.
If your existing lines come up through the floor, they may need rerouting into the wall. That can mean working from the other side of the wall, or from below. Your plumber confirms what’s possible in your bathroom. Ask before the vanity is ordered.
Who Should Settle the Height and Backing, and When?
As a general rule, you and your designer settle the vanity, its finished height and its countertop while the layout is still on paper. Then those numbers go to the plumber and to whoever frames the wall, before the wall is closed. Paper is easy to change. A tiled wall isn’t.
In bathroom remodeling, McDaniels’ design team is experienced in creating designs that bring cabinets, plumbing fixtures, tile and more together. The team also guides you through rearranging the layout to make the most of your available space. So the wall behind the vanity gets planned with the vanity itself.
A McDaniels bath design expert can help you understand your requirements and identify the vanity top that fits your needs. Bring the height question along.
Frequently Asked Questions About Floating Vanities
Can a floating vanity hang on any wall?
It needs something solid where its mounting points land, and that’s the thing to confirm first. The maker says blocking cut from standard two-by-fours can be added between the studs when they don’t line up with the vanity’s mounting location. Your designer and whoever frames the wall can tell you what’s inside that wall before the cabinet is ordered.
Will a wall-hung vanity hold a stone countertop and a sink?
The maker ties the answer to the vanity rather than to one number. It says the answer depends on the size of the vanity, how it’s built, the mounting hardware and technique, and the quality of the install. So plan the top and the sink together with the cabinet, and get the backing in place for the whole load rather than for the box alone.
Can a wall-hung vanity go up without opening the wall?
It can depend on what’s already behind the drywall. The maker links how long the job runs to whether the wall needs opening so backing can be set behind the vanity. If the studs happen to line up with the cabinet’s mounting points, the job may be simpler. Putting blocking between studs means getting inside the wall.
What can go in the open space underneath?
The maker says that space can hold baskets, a step stool for a child or a bathroom scale. It also says a wall-hung vanity can open up a small bathroom’s flow and make the room look larger. The height you pick decides how much room is down there. Set the countertop higher and you’ve got more.
What should I bring to a design consultation about a wall-hung vanity?
Bring the vanity you like, or its listing. Bring the countertop height you have in mind, a note on who’s at that sink every day, and photos of the wall and of where the pipes come out. McDaniels’ experienced designers are available for complimentary consultations, and McDaniels has many styles and brands on display in its Lansing showroom.
Pick the Height, Then Close the Wall
At McDaniels, your design team guides you through rearranging the layout to make the most of your available space and selecting the products that will enhance your room.
A floating vanity looks effortless on the wall. That look starts with what’s inside the wall, and with a height you picked on purpose.
McDaniels has many styles and brands on display in its Lansing showroom, and you can book a complimentary design consultation to settle the height before the wall is closed.
