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Started By
Message
Help me install a floating double vanity.
Posted on 7/12/24 at 5:55 pm
Posted on 7/12/24 at 5:55 pm
First time attempting something like this on my own. I have a 55" floating double vanity with a quartz countertop. The entire thing is about 300lbs.
Our contractors came in and removed the old vanity, taking away some of this drywall in the process and exposing the studs. I understand that they'll be along next week to patch it up, but over the weekend I have the chance to add some extra stud blocks to ensure that the French cleat (which the entire vanity basically hangs on) can be fastened as securely as possible.
Three mounting brackets were included, to run along the bottom of the vanity toward the back wall. There is of course always the concern of the thing sagging or breaking away from the wall. Thankfully the space that this 55" vanity will occupy is just a hair under 56" wide--in other words I am almost completely filling this space width, and I could in theory bracket the thing on three sides.
First things first though, what adjustments can I make to the studs to ensure the strongest hold for the French cleat? The cleat is about 50" and has four pre-drilled holes spaced about 14" apart, with 4" left on the outside of the two outer holes. I don't know if it's advisable to drill additional holes to ensure a stud connection.
And how much of this drywall should I be cutting away?
Any and all help will be appreciated. Sure to be a comedy of errors. Let the fun begin.
Our contractors came in and removed the old vanity, taking away some of this drywall in the process and exposing the studs. I understand that they'll be along next week to patch it up, but over the weekend I have the chance to add some extra stud blocks to ensure that the French cleat (which the entire vanity basically hangs on) can be fastened as securely as possible.
Three mounting brackets were included, to run along the bottom of the vanity toward the back wall. There is of course always the concern of the thing sagging or breaking away from the wall. Thankfully the space that this 55" vanity will occupy is just a hair under 56" wide--in other words I am almost completely filling this space width, and I could in theory bracket the thing on three sides.
First things first though, what adjustments can I make to the studs to ensure the strongest hold for the French cleat? The cleat is about 50" and has four pre-drilled holes spaced about 14" apart, with 4" left on the outside of the two outer holes. I don't know if it's advisable to drill additional holes to ensure a stud connection.
And how much of this drywall should I be cutting away?
Any and all help will be appreciated. Sure to be a comedy of errors. Let the fun begin.



Posted on 7/12/24 at 6:45 pm to messyjesse
just have the contractor do it : LOL:
what do you possibly stand to gain by doing this yourself?
what do you possibly stand to gain by doing this yourself?
Posted on 7/12/24 at 9:03 pm to messyjesse
I would add blacking in the wall every 12" and attach the cleat with minimal 3" screws or lags. That will be more than enough to hold the vanity.
If you actually saw the screws that hold your upper kitchen cabinets to the wall, you'd really be concerned.
If you actually saw the screws that hold your upper kitchen cabinets to the wall, you'd really be concerned.

Posted on 7/13/24 at 12:03 am to jmon
quote:
I would add blacking in the wall every 12" and attach the cleat with minimal 3" screws or lags. That will be more than enough to hold the vanity.
Thanks, that's the direction I'm leaning. Any ideas on how to block around that pipe? I have almost exactly 3/4" in front of that pipe to play with. I was thinking of fastening a piece of plywood across the vertical studs with a 2x4 on its face behind it.
This post was edited on 7/13/24 at 12:04 am
Posted on 7/13/24 at 7:49 am to messyjesse
After looking at the picture more closely, I would put "king" studs on both sides screwed into the existing studs and put a "header" for mounting the cleat. Then you can fasten as many screws as you like.
Posted on 7/17/24 at 10:46 pm to messyjesse
Update on progress. Everyone I talked to said that blocking the entire wall horizontally was the best option but we could not figure out a way around the white pipe. Plan B was to block the left and right sides, drill some extra holes in the French cleat to hit studs two or three times on each side, and maybe fortify any remaining hole with drywall anchors.
Decided to stage the vanity on some old college textbooks before blocking, just to see how it might look. Fills the space almost perfectly. I knew there was a reason I'd been holding onto those books all these years.
Also gave me some assurance that I could use a bracket on at least one side. Found a stud with the help of my trusty stud finders:
Blocking on left and right sides. Kids wanted to write on one of the blocks before we sealed it away.
Drywall's up. I gave the edges some primer but probably didn't need to before the patchwork began. Oh well.
Got a little help.
This was the result after going through a small tub of USG All-Purpose, about 15 feet of drywall tape, and one patch for that stubborn hole at the joint above the leftside plumbing.
All told, not a bad job for a piece of wall that I don't expect to see again for a while. Will probably run over it with the orbital to level it out. Still debating whether I want to mud around the pipes or get some flanges.
Bonus: contractor installed the wrong tiles earlier this week, so I get to do all of this mudwork over scrap while we wait for the correct tiles to arrive.
Decided to stage the vanity on some old college textbooks before blocking, just to see how it might look. Fills the space almost perfectly. I knew there was a reason I'd been holding onto those books all these years.

Also gave me some assurance that I could use a bracket on at least one side. Found a stud with the help of my trusty stud finders:

Blocking on left and right sides. Kids wanted to write on one of the blocks before we sealed it away.

Drywall's up. I gave the edges some primer but probably didn't need to before the patchwork began. Oh well.

Got a little help.

This was the result after going through a small tub of USG All-Purpose, about 15 feet of drywall tape, and one patch for that stubborn hole at the joint above the leftside plumbing.

All told, not a bad job for a piece of wall that I don't expect to see again for a while. Will probably run over it with the orbital to level it out. Still debating whether I want to mud around the pipes or get some flanges.
Bonus: contractor installed the wrong tiles earlier this week, so I get to do all of this mudwork over scrap while we wait for the correct tiles to arrive.
This post was edited on 7/17/24 at 11:59 pm
Posted on 7/18/24 at 5:49 am to cgrand
quote:
what do you possibly stand to gain by doing this yourself?
Hundreds to a thousand dollars.
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