How To Find Wall Studs Behind Tile

Step one, don't use a stud finder.

How To Find Wall Studs Behind Tile. To find the exact position of the stud, take a drill and with a drill bit whose diameter is less than the thickness of the grout, drill a few exploratory holes into the grout. Use a standard stud finder above the tile, and plumb down from it.

Quick Tip #1 - Finding studs in lath & plaster walls - YouTube
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Next i drilled at every 16 and 24 inches given that's the standard widths. (on center) and when you knock on wall sections without a stud, you will hear more resonance from the hollow space behind. Can you share any secrets on how to find wall studs or ceiling joists hidden behind drywall or plaster without one?

This is because you will not be able to find the studs behind the wall in order to securely install your vanity once you have installed the tiles.

Look for clues to where hidden drywall fasteners are. Mark the tile with a piece of masking tape 16 inches from the corner. What does a stud finder detect? Locating studs will ensure the object you wish to hang will remain securely mounted on a wall.