Finding a stud can be useful but not necessary if you have a strong enough hanger.
How to hang up a wall mirror.
Use anchors if the bottom cleat isn t lined up over wall studs.
Place a scrap piece of wood that is approximately half as long as the mirror is wide underneath the hanging wire on back of the frame.
They should fit together like jigsaw pieces.
Set the mirror down.
See step 7 above in hang a mirror using hooks for information on how to install drywall anchors and how to remove unwanted drywall anchors.
Mark the location of the top edge and the center of the frame.
Note if you ve used wood glue to secure the mirror s cleat be sure to wait until the glue is completely dry before hanging the mirror.
Hold the mirror against the wall at the desired position.
Hold your mirror up to the wall to see how much space it will take up.
Lift the mirror into place and lock the two cleat hooks together.