
4 Tricks to Find Studs in a Plaster Wall
- Step 1: Find an Electrical Box Electrical boxes for outlets and light switches are supposed to be attached to studs. ...
- Step 2: Knock on the Wall This one may seem old fashioned, but gently knocking your hand along the wall and listening for differences is a pretty accurate technique to find studs. ...
- Step 3: Use a Magnet ...
- Step 4: Use a Metal Detector ...
How to find ceiling joists under lath and plaster?
punch a hole with a large nail through the ceiling to find a joist. once found punch till you find either side of the joist usually a 2inch joist. mark ON THE WALL either side of the joist you then know where to put your screws. off your first one, mark the rest of your joists, they should be 16inch centres. Click to see full answer.
How do I find the studs behind plaster walls?
Use A Magnet
- A magnet will hit the spot and detect the presence of studs in a straightforward way. ...
- Suspend the magnet along the wall and move it along in a snail’s pace horizontally.
- Occasionally, the magnet will attach to the wall for some time on a stud’s location. ...
How to find studs behind plaster walls?
Tips and Tricks for Stud-Finding in Plaster Walls
- Plaster walls have nailing strips of slim wood lath, spaced ¼” apart, horizontally along the vertical studs
- Only the sturdier, thicker wood studs beneath the considerably light, thin plaster layer can endure weighed down plasma TV, electronics and shelves
- Timber studs lie vertically with a spacing of 450mm or 600mm away. ...
How to find exterior wall studs?
Though stud finders may have different features, using them includes the same basic steps:
- Before you figure out how to use a stud finder, check to make sure its batteries are working and that the power is on.
- Then, decide how high on the wall you’d like to hang your item. ...
- Place your stud finder up to the wall, with the flat side against the wall.
- Calibrate the stud finder, using the manufacturer’s directions. ...

How do you find studs behind lath and plaster walls?
0:135:05how to find studs in plaster walls - YouTubeYouTubeStart of suggested clipEnd of suggested clipIf there's anything metal they'll find it they're extremely difficult to separate. They really wantMoreIf there's anything metal they'll find it they're extremely difficult to separate. They really want to hang on. So what we're going to do is putting it on the wall until it finds a nail underneath.
How far apart are studs in lath and plaster walls?
They're always spaced either 16 or 24 inches on center (measured from center to center) along the wall and run between the floor and ceiling. Drywall or lath (for plaster walls) attaches to the edge of the studs.
Can you mount a TV on lath and plaster?
You most certainly can mount this on lath and plaster walls. The key is finding the studs - and honestly finding the center of the studs. The mount itself is really heavy, and then you're putting a heavy television on the end of a long lever.
How do you hang things on plaster and lath walls?
Plastic wall anchors don't work with lath and plaster walls. Instead, use plaster anchors made of metal like a molly bolt or a toggle bolt. Be sure to use one that's long enough to get behind the plaster and lath. When drilling into plaster, you'll need to use a masonry bit.
Do stud finders work on lath and plaster?
Lath and plaster walls have an irregular surface that are a problem for stud finders. As a result, your stud finder can show a false positive (a stud indication when it is actually not a stud) when it finds an increase in density, even if it is just a glob of plaster.
Should you remove lath before drywall?
The best—but messiest—way to update to drywall is to completely demolish the old walls, tear out the lath and plaster all the way down to the studs, and update the wiring and insulation before installing new drywall panels.
How do you hang a heavy mirror on a lath and plaster wall?
0:392:01How to Hang a Heavy Mirror on a Plaster Wall - YouTubeYouTubeStart of suggested clipEnd of suggested clipPlace the screw right over the mark. And go ahead and drill it. In. You want to make sure that you'MorePlace the screw right over the mark. And go ahead and drill it. In. You want to make sure that you're hitting a laugh board behind your plaster or a stud.
Is plaster stronger than drywall?
For one thing, plaster is by nature a more durable finish than drywall, even high-level drywall finishes. In addition, plaster outperforms drywall in a number of key areas, including insulation, soundproofing, and fireproofing.
How much weight can plaster walls hold?
Both plaster and drywall can hold roughly the same amount of weight. A screw driven into a stud in both plaster and drywall can hold 80–100 pounds (36–45 kilos). Anchored screws or other fasteners set into the wall where there is no stud can hold up to 20 pounds (9 kilos).
How thick is plaster and lath?
A traditional 3-coat plaster is typically 7/8″ thick and when you add in the 1/4″ wood lath that supports the plaster wall, you have a wall that is more than 1″ thick! Compared to today's most common drywall thickness of only 1/2″, that is a difference worth noting.
How do you drill into plaster without cracking it?
Drill through the tape and into the plaster at the marked location. The tape prevents the plaster from cracking and flaking around the hole as you drill.
How do you hang a heavy picture on a plaster wall without nails?
For hanging items up to 20 pounds without finding a stud, you can use anchored screws, drywall hooks, plaster hooks, or toggle bolts. For items 5 pounds (2 kilos) or less, use adhesive hooks. To hang multiple items on a single wall, consider using a picture rail.
How far apart are studs in a 1950s house?
Studs in older homes are generally 16 to 24 inches apart. Check which side of your outlet is attached to the stud and measure off the next 16-24 inches to find the next one.
How do you mount a TV on a plaster wall without studs?
Expanding anchors or conical anchors are one of the simplest ways to mount a tv when studs aren't available. The wing-like grooves lock into place behind the wall when a screw is screwed in and this can provide ample support for things like pictures with a heavy frame or a lightweight tv.
What if you can't find a stud in the wall?
If you can't find the stud even after drilling, there's one more technique you can try: Grab a wire hanger and untwist it, fashioning it into a right angle. Use your new tool to fish around behind the wall, says Rothman. When the wire makes contact with a firm object, that indicates you've found a stud.
Is lath and plaster better than drywall?
Lath and plaster walls provide a room with better soundproofing, as opposed to drywall walls of an ordinary thickness (1/2-inch). Soundproof drywall, though, rivals lath and plaster walls in terms of soundproofing. Lath and plaster walls have a slightly better insulating R-value than do drywall wall systems.
How to make a magnet stick to a wall?
It works every time! Grab the strongest magnet you have and tie a piece of dental floss or string around it. Dangle the magnet against the wall and slowly move it horizontally across the wall. You have to go slow. Every so often, the magnet will stick to the wall a bit on the stud location. It has to be a strong magnet for this to work, so those floppy pizza magnets won’t cut it.
How far apart should a house be framed?
Most houses built in the last 100 years were framed 16″ O.C. (on center) and some were framed 24″ O.C . although many old houses may have unusual stud spacing so this method may not work for everyone.
How to see if a light switch is on one side of a stud?
To see which side the stud is on, take the switch plate cover off and take a peak inside. Either turn the breaker off, or be careful not to touch any wires before attempting this or you can get a nasty shock.
What happens when you knock on a wall without a stud?
When you knock on wall sections without a stud, you will hear more resonance from the hollow space behind. Once your knuckle hits the spots where a stud is located, the sound will change to more of a dull thud.
Do pizza magnets cut studs?
Every so often, the magnet will stick to the wall a bit on the stud location. It has to be a strong magnet for this to work, so those floppy pizza magnets won’t cut it. The reason this works is because the wood lath is nailed to the studs, and the magnet is attracted to those nails.
Can a metal detector pick up old wire?
If you happen to have a small metal detector, you can use this along the same premise as the magnet technique. Beware that depending on the sensitivity of your metal detector you may pick up old wiring, cast iron plumbing, or other things hiding in the wall. Unlike the magnets which aren’t strong enough to be attracted to a pipe that is a couple inches recessed into the wall the metal detector may give you false readings.
How to find studs in plaster?
A multi-scanner and metal detecting stud finder that pegs down nails that fix the lath to a stud instead of detecting density will hit the “sweet” spot. A simple wire scan or other techniques can help you pinpoint the studs or joists in plaster walls or ceilings.
What is lath stud?
Laths have horizontal fastening on vertical studs, with wire mesh added and two seams of plaster applied over the strips. The lath and plaster construction makes it challenging to pinpoint the studs to mount heavy objects like shelves and electronics.
How to detect studs in a wall?
A magnet will hit the spot and detect the presence of studs in a straightforward way. Tool up with the most attractive magnet and attach a portion of dental floss or strand around it. Suspend the magnet along the wall and move it along in a snail’s pace horizontally .
How to determine joist and stud region?
To ascertain joist and stud region, mount on the attic and give rafters a walk-through but not in-between to measure up the first joist’s location.
Why do metal detectors not fall prey to red herrings?
Top-class multi-scanner stud detectors with a metal scanning mode will not fall prey to red herrings due to changes in density along the backside of the wall. A metal sensor or dedicated metal scan mode helps you pinpoint tiny nails and tacks that fasten all pieces of wood lath to studs.
What to use for two mounting holes?
If you want to use two mounting holes and can’t find another stud, substitute it with a plasterboard anchor at the reinforcing point for firm and steady support
How to tell if crown molding is studs?
Examine the baseboard and crown molding minutely for noticeable nails as a clue leading to studs or ceiling joists. You can tap the wall gently for a thud but not a hollow sound.
How to find screws in plaster wall?
Use a Metal Detector. Some people suggest using a magnet to find the screws in your home’s studs. This can work sometimes, and only if you use a heavy-duty magnet. The next best trick to find a stud in a plaster wall is to use a metal detector. If you have one lying around the house, use it to scan the wall to detect those screws.
How far apart are electrical sockets?
Be careful when you’re doing this, and go ahead and turn off your breakers first when looking for studs this way. Studs in older homes are generally 16 to 24 inches apart.
How far apart are studs?
Studs in older homes are generally 16 to 24 inches apart. Check which side of your outlet is attached to the stud and measure off the next 16-24 inches to find the next one. You can use any of the above methods to ensure you’ve found the next stud on your wall. From there, write down how many inches it is from each stud.
How long does it take to find studs behind plaster?
Bottom line: As long as you work diligently, and with a little patience, you can find your home’s studs behind the plaster in a matter of minutes!
What is a stud in a house?
Studs are the wooden beams that support the walls in your house. Imagine hanging a 50 pound framed piece of artwork on nothing but drywall. It wouldn’t stay there for long! Ensuring your wall décor is anchored to these studs means they’ll stay in place until you decide to take them down again.
How to find a stud in an old house?
This is the method you’ll find most professionals using to locate a stud in an old home. A simple double tab with your knuckle against a wall is enough to do the trick.
Can you use a stud finder to find the perfect spot?
Ensuring your wall décor is anchored to these studs means they’ll stay in place until you decide to take them down again. You can simply use a stud finder to find the perfect spot these days, but this won’t work reliably on older homes.
How to make a magnet stick to a wall?
It works every time! Grab the strongest magnet you have and tie a piece of dental floss or string around it. Dangle the magnet against the wall and slowly move it horizontally across the wall. You have to go slow. Every so often, the magnet will stick to the wall a bit on the stud location. It has to be a strong magnet for this to work, so those floppy pizza magnets won’t cut it.
What is a stud pop?
This simple stud finder is a powerful magnet that pops into place when a stud fastener is detected. Just like my magnet trick, but a bit more refined than tying dental floss around a magnet. Check it out here!
How does a magnet work on wood studs?
The reason this works is because the wood lath is nailed to the studs, and the magnet is attracted to those nails. Keep in mind there are some spaces between lath vertically so if you’re not having much luck try moving the magnet up or down a bit so that it is over top one of the hidden nails.
How far apart should a house be framed?
Most houses built in the last 100 years were framed 16″ O.C. (on center) and some were framed 24″ O.C . although many old houses may have unusual stud spacing so this method may not work for everyone.
How to see if a light switch is on one side of a stud?
To see which side the stud is on, take the switch plate cover off and take a peak inside. Either turn the breaker off, or be careful not to touch any wires before attempting this or you can get a nasty shock.
What happens when you knock on a wall without a stud?
When you knock on wall sections without a stud, you will hear more resonance from the hollow space behind. Once your knuckle hits the spots where a stud is located, the sound will change to more of a dull thud. Move along the wall and look for a pattern to show itself, and you’ll slowly be able to see your stud spacing.
Can a metal detector pick up old wire?
If you happen to have a small metal detector, you can use this along the same premise as the magnet technique. Beware that depending on the sensitivity of your metal detector you may pick up old wiring, cast iron plumbing, or other things hiding in the wall. Unlike the magnets which aren’t strong enough to be attracted to a pipe that is a couple inches recessed into the wall the metal detector may give you false readings.
Why You Should Find Studs
Studs are boards that function as framing elements in your home, supporting the walls. You may wonder, how far apart are studs in my home? They're always spaced either 16 or 24 inches on-center (measured from center to center) along the wall and run between the floor and ceiling.
How to Find a Stud in the Wall
You can find studs with an electronic stud finder, or you can try to find them manually. If your walls are drywall, a stud finder locates studs quickly and accurately. It's less effective on lath/plaster walls, but some have a metal-scanning feature that may locate the nails securing the lath to the studs.
