Mark the wall and cut a hole you need to cut a horizontal hole exactly the same size as your piece of wood at the height of the clips on the back of the vanity you will need to figure that height out yourself it will depend on the exact model of your vanity and how high you want the top of your vanity to be.
How high to hang a wall mounted bathroom vanity.
Place the light about 40 inches above the top of your vanity.
Wall hung vanities come in multiple sizes depending on the manufacturer.
You can also use the vanity as a guide.
In those situations a wall mounted vanity fixture above the mirror is an option.
Mark with a pencil to indicate the bottom edge of the light.
Mark the vanity s width above the rough plumbing.
You must take into account the existing height of the piece when you install one in your bathroom.
Measure 3 inches from the top of the mirror or 7 feet vertically from the floor if the mirror is not already in place.
Therefore while the average floor mounted vanity may cost about 100 to install a wall hung cabinet will likely take a carpenter 3 to 4 hours to install properly at a rate of 70 an hour for a total of 210 to 280 for installation.
Extend the mark with a level.
If the piece measures 20 inches high and you want a height of 31 inches you must mount it 11 inches above the floor.