Finding studs in a horse hair plaster wall

studs

So, I've tried all the standard methods. Checked the outlet, which is screw directly into the lath(yeah, is that even up to code?!). Magnet doesn't work, I've got a rare earth magnet, and the plaster is apparently too think to pick it up(it's about an inch thick, so this doesn't make sense). I though to use the window as a base, but from the center line of where a stud would be at the edge of the window, 16 inches from there, there is no stud(I drilled it).

I'm losing my mind on this.

Best Answer

16"oc is just for the field, around the windows, doors & corners will vary, down to 2"s is what I've seen. Like bib said, you can get a Stud Finder, but it needs to have Deep Scan capabilities, it's especially for plaster walls.

Otherwise, just Keep Drilling. Drill a hole & stick in a crescent shape bent & inch marked coat hanger for a fairly accurate measurement to the next stud & next drilled hole. I prefer to drill on both sides of at least 2 studs to see if I'm actually dealing with a full 2" thick stud. Yours should be 2" & they usually are.

Mark your bent coat hanger where the tape measure's straight line measurement hits, so you get pretty much what your tape measurement will be on the outside of the wall. A minimum of a 1/4" hole works well to give your wire room to navigate.