How to Find a Stud behind Plaster Walls

TLDRLearn how to find a stud behind plaster walls using a magnet. This method is particularly useful for houses with plaster and lath walls, as electronic stud finders may not work accurately on this type of surface.

Key insights

🔍Finding a stud in plaster walls can be difficult with electronic stud finders.

🧲Using a magnet is an effective method for locating studs behind plaster walls.

🔨The lath nailed to the studs behind the plaster can be detected with a magnet.

📏Studs are typically spaced about 16 inches apart, but this can vary in older houses.

Verifying the location of studs using a small nail before drilling is recommended.

Q&A

Why doesn't an electronic stud finder work well on plaster walls?

Electronic stud finders depend on detecting changes in density, which may not be accurate with plaster walls due to the presence of lath and multiple layers.

What kind of magnet should I use?

A strong magnet, such as a rare earth magnet, is recommended for better detection of the nails in the wooden studs.

Can I use the magnet method on drywall too?

Yes, the magnet method can also be used on drywall surfaces, but electronic stud finders generally work well for drywall.

How accurate is the 16-inch spacing of studs?

While 16 inches is a commonly followed standard, the spacing of studs can vary in older houses, sometimes being up to 24 inches apart.

Why is it important to verify the stud location before drilling?

Verifying the stud location using a small nail ensures that you hit the stud rather than drilling into the wall, which could cause damage.

Timestamped Summary

00:00Intro: The video explains how to find a stud behind plaster walls.

00:42Traditional methods: The knock test and electronic stud finder may not work well on plaster walls.

01:50Using a magnet: A strong magnet can detect the nails in the wooden studs behind the plaster.

02:28Stud spacing: Studs are typically about 16 inches apart, but older houses may have different spacing.

02:58Verifying the stud location: Before drilling, it's recommended to test the stud location with a small nail.