
Turn on the stud finder, calibrate on a blank area, slide horizontally. It beeps or lights at the stud edge. Mark both edges with painter's tape — the center is where you drive. A rare-earth magnet works too: it sticks to drywall screws hidden in studs.
Studs are typically 40 cm (16 in) apart. If you find one, measure 40 cm each direction to predict the next. If your desired spot is between studs, that is fine — you will use an anchor.
Pro tip. Stud finders lie near electrical boxes and pipes. If it beeps everywhere, slow down and try a magnet instead.










