Knowledge Builders

do stud finders work on lath and plaster walls

by Dustin Towne Published 2 years ago Updated 2 years ago
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Because standard stud finders detect a change in density inside the wall, they don't work on lath and plaster – the density inside these walls is not constant enough. If you have just moved into an older home and your stud finder isn't doing its job, invest in a metal scanner instead.

How much does a stud finder cost?

This is useful when hanging particularly heavy or expensive items. How Much Does a Good Stud Finder Cost? A good stud finder (with verified, above-average reviews) costs approximately $21, according to a 12-month analysis of price trends. Those same stud finders cost around $15 while on sale: an average discount of 29%.

How to find studs without stud finder?

What are studs, anyway?

  • Wall studs exist to hold up drywall on interior walls and wood sheathing on exterior walls. ...
  • You may be asking, “How far apart are studs?” The distance between studs varies slightly depending on the age of the home. ...
  • Most electrical boxes for switches or outlets are attached to a stud on one side.
  • There are studs on either side of a window.

More items...

What is the best stud finder?

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How to use a stud finder?

How to Use a Stud Finder

  • Calibrate Stud Finder. Calibrate the stud finder by first placing it against the wall at any spot. ...
  • Sweep Toward Stud. Slowly move the stud finder horizontally toward the stud.
  • Mark Stud. ...
  • Sweep From Other Direction. ...
  • Mark Stud Again. ...
  • Sweep Near Stud. ...
  • Pull Away Magnet Holder. ...
  • Deposit Additional Magnets. ...
  • Find Centerline of Magnets. ...
  • Plug Scanner to Phone. ...

More items...

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How do you find studs in a lath and plaster wall?

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.

Do any stud finders work on plaster walls?

The cheap and simple StudPoP "Grip" magnetic stud finder works with most construction types like plaster and sheetrock. It is accurate and requires no batteries or calibration.

How far apart are studs in lath and plaster walls?

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.

Do magnetic stud finders work on plaster walls?

Wall material: While most people will be dealing with drywall, older homes may have plaster-and-lath walls. In our experience, magnetic stud finders are more effective on plaster-and-lath, because the line of nails that secure the lathe to the stud runs all the way up the wall.

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 lath and plaster 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.

How do you mount a TV on a plaster wall without studs?

How to mount a tv on a plaster wall without studs using togglesPlace your TV mount on the wall. ... Use a level to make sure the mount is levelled properly.With a pencil or marker, draw marks on the wall.Put aside the TV mount.Use a drill bit as large as the toggle when folded.Drill the holes.More items...•

When did they stop using plaster and lath?

Lath and plaster was a skilled craft and a time-consuming technique and the advent of cheaper, mass produced, pre-manufactured plasterboard meant lath and plaster largely fell out of favour by the 1930s and 1940s. Plasterboard was simply faster and less expensive to install.

Is lath and plaster better than drywall?

Wood lath, covered by several layers of plaster, provides better sound insulation than drywall. Plaster is more fire-resistant than drywall, especially when laid over metal lath. Because plaster is more contour-friendly than drywall, it's easier to apply to curved walls.

What's behind plaster walls?

Rock Lath and Plaster Rock lath was a common base layer for plaster walls between 1900 and 1960. Unlike wood lath, which is applied in strips, rock lath is 4-foot long sheets of hole-filled, chemically treated rock that's designed for wet plaster application.

How do I know if I have lath or plaster walls?

If the pin pokes into the wall easily, that's drywall. If it doesn't, then that's plaster. A pushpin can penetrate drywalls easily because they're softer compared to plaster. Meanwhile, lath and plaster walls won't even budge with a thumbtack unless you use a hammer.

How do I find ceiling joists under lath and plaster?

Hold a flashlight right by the ceiling on a very gentle angle to the surface, so the light shines nearly horizontally across it. Look for dimples in the paint. They usually indicate the presence of a nail behind the plaster, and where there's a nail, there's a joist.

What is the best way to find studs in a plaster wall?

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.

Does Walabot work on plaster walls?

The Walabot DIY can be used on drywall and concrete walls. It does not work on lath and plaster walls.

Do stud finders work on textured walls?

0:101:12Zircon Tip Minute 7: Finding Wall Studs through Textured WallsYouTubeStart of suggested clipEnd of suggested clipAnd ceilings textured or plaster walls can cause a lot of problems for stud finders. It's hard toMoreAnd ceilings textured or plaster walls can cause a lot of problems for stud finders. It's hard to keep the tool flush against the wall. And since heavily textured surfaces have uneven densities.

What is the best stud finder for stucco walls?

To determine whether your stucco has metal or not, use a Zircon metal detector, such as the MetalliScanner® m40 or a MultiScanner® i520 in metal scan mode.

What Are Stud Finders?

They have been in use since the early 20 th Century, with the earliest stud finders using magnetism to locate hidden studs behind walls.

What are the different types of finders?

There are numerous types available, but they mainly fall into two categories: electric finders and magnetic stud detectors (analog finders). Some newer types incorporate new technology such as 3D imaging, although these are not common.

Why does an empty wall affect the electrical field?

If the wall is empty, it will affect the electrical field less than if the wall has studs, because studs have a higher density. The best part about these finders is their inexpensive costs, as well as being much more reliable and easy to operate compared to the magnetic types.

What do electronic finders do?

Electronic finders are more versatile than the magnetic types, as they use radio frequencies or electrical fields to find the studs. In addition, some of them can also locate critters, pipes, and wiring within the walls, not just framing.

How to make a magnet stick to the wall?

For this, you will need the strongest magnet you have, and tie a string or dental floss around it. Dangle it against the wall, and move it very slowly across the wall. If there is a stud, the magnet will stick to the wall.

Can you find studs in plaster walls?

Finding studs in a plaster wall is not as easy as other types of walls, but it is possible – especially when you do not need to rely on a stud finder.

Can you see through walls with a stud finder?

You will never have the X-ray vision that you see in superhero movies, but the stud finder comes rather close to that ability. At least, it gives you a chance to see what seeing through walls is all about.

How to find a stud in a wall?

Beginning at the nail, move the scanner straight up the wall. If it registers metal at intervals, it is finding a series of nails and you have found a stud. If it registers metal constantly, you have found a pipe inside the wall; in that case, sweep the scanner over a wider expanse of wall to find another spot where it registers metal. Repeat the process there.

How many inches are studs?

Studs not installed at 16-inch increments are probably installed at 24-inch increments. As an alternative to using an electrical outlet, look at the baseboard in the room and locate a place where it has been nailed to the wall. It is probably nailed to a stud. Begin your scan there.

What happens if a scanner registers metal?

If it registers metal constantly, you have found a pipe inside the wall; in that case, sweep the scanner over a wider expanse of wall to find another spot where it registers metal. Repeat the process there.

Do stud finders work on lath?

Because standard stud finders detect a change in density inside the wall, they don't work on lath and plaster – the density inside these walls is not constant enough. If you have just moved into an older home and your stud finder isn't doing its job, invest in a metal scanner instead.

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.

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.

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.

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.

How to find studs in a wall?

The simplest way of locating studs is by using a stud finder. Stud finders are handheld gadgets that identify the location of the wall’s support frames by checking for differences in the wall’s density. Since wood is denser than plaster, the instrument will notice that and alert you through the flash of an LED light or a beeping noise.

How thick can a stud finder detect?

It is highly effective at its job, as it can detect metal in walls that are up to 4 inches thick, which is more than twice the depth that other stud finders are capable of detecting.

What is a 03040?

The 03040 uses powerful magnets to locate the position of nails or screws on a stud, thus allowing you to know where the wooden stud is. As you can imagine, it works even better for metal studs. The magnets are so powerful that the stud finder can stick to the wall to allow for hands-free use.

How deep is a stud finder?

This design allows you to use it in unorthodox places, such as the roof slab or ceiling. It has a decent detection depth of ¾ inches and detects studs covered by fabrics and wallpapers.

What is the importance of a plaster wall before installing?

Before you install anything on your plaster wall, it is important to ensure that it can support the weight of the item you are about to install. This means that you must identify the location of the wooden or steel frames (studs) behind your drywall first so that you can drive your screws or nails into them. If you do not do this, you risk destroying your wall, as well as the installed object once it comes tumbling down due to weak support.

Can a stud finder detect other objects?

It is important to note that this device tends to detect other objects behind the wall, such as nails and wires. However, it does not classify them differently, meaning it might lead you to believe that you have located a stud while you haven’t. As such, you will need to move the stud finder around that area to confirm that what you have detected is indeed a stud.

Is the Hanson 03040 a good grip pad?

Due to its simple design, the CH Hanson 03040 is extremely user-friendly; it requires no skills to use, it comes with a soft grip pad for comfort and is small enough to fit into a regular pocket.

What does a stud finder do?

The stud finder notifies the user when it detects studs or live wires behind a wall. It does this using a backlit LCD screen and an audible warning message that alerts you of objects hidden behind your wall.

What is a vivreal stud finder?

This stud finder from Vivreal comes with a live wire detection feature that allows the user to avoid drilling through risk-prone live AC wires. This feature is a standard among most models designed for use on plaster walls.

How does the 03040 work?

The 03040 will easily fit inside your pocket or toolbox. It features an ergonomic design and a soft grip all aimed at giving you maximum comfort.

What is the Walabot in wall scanner?

The Walabot DIY In-Wall Imager has multiple scan modes which include picture mode, tangle mode and raw image mode which shows a red splotch on the phone’s screen even when it’s not placed against a wall.

Can a stud finder be used on plaster?

Absolutely, you can use a stud finder to detect pipes, live AC wiring, rebar, nails and more on plaster walls. The catch, however, is that your stud finder of choice should be capable of maintaining precision on rough or textured surfaces such as a plaster wall.

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.

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 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 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.

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.

What brands of stud finders are reputable?

You also want to stay with reputable brands like Zircon, Franklin Sensors, Bosch, and others. Know your tool, and know the applications, then you’ll have a great chance of success. Even well-known brands like DeWalt often feel (to us) like they merely put their name on a generic stud finder. These tools still typically function well. They just don’t offer advanced features or anything above and beyond the norm. The Zircon MetalliScanner MT6 is one of our particular favorite advanced stud finders.

What scanner can find metals?

Still more impressive are sophisticated devices like the Bosch D-Tect 150 or the Makita DWD181 Wall Scanner which locate wood, electrical, ferrous, or non-ferrous metals, and now even plastic behind drywall or sheetrock.

Do battery operated stud finders work?

Our experience shows that most battery-operated types work fairly well to some extent. Some of this is a function of “you get what you pay for” since many low-cost stud finders do not have the penetrating power to accurately get though the wall materials to find the studs. There’s also the issue of not having the sensors needed to find things that are important to you—like electrical wires or metal studs or metal conduit.

Do stud finders work on cinder block homes?

Most magnet-type stud finders don’t work effectively since they reply on locating the fasteners (screws) used to secure the drywall. These can be very difficult to locate.

Can Franklin ProSensor 710 find studs?

Another really cool product is the Franklin ProSensor 710 Stud Finder which can locate multiple studs at the same time and uses an array of LEDs to indicate the position of a wood or steel stud behind the drywall. It’s only too bad we can’t have them design an inexpensive model to find underground wiring!

Can you screw a stud into air?

These little beauties simply locate the screws or nails that hold the drywall to the stud. Since you can’t screw into air, they end up being very reliable.

Do stud finders work?

So Yes, Stud Finders Do Work. In the end, you need a good stud finder. While the knuckle-knock test works a majority of the time on simple drywall, a good stud finder gives you more precision. It also saves your knuckles for more important tasks like gripping a hammer drill!

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1.Can A Stud Finder Work Through Plaster? - Toolboxgadgets

Url:http://toolboxgadgets.com/can-a-stud-finder-work-through-plaster/

28 hours ago Yes, a special or strong stud finder is needed to detect or find the studs behind lath and plaster walls. Lath and plaster walls make very thick walls together (almost 1-inches thick), thicker than drywall. Drywalls are mostly ½ inch thick, making lath and plaster walls thicker than drywall.

2.How to Find Wall Studs in a Lath & Plaster Wall - SF Gate

Url:https://homeguides.sfgate.com/wall-studs-lath-plaster-wall-23951.html

3 hours ago  · To function properly, the wall surface must have a consistent density level, and be less dense than the wood stud. Stud finders, however, will not always return accurate results with lath and plaster walls because of the very inconsistent method by which they are constructed.

3.Videos of Do Stud Finders Work On Lath and Plaster Walls

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31 hours ago  · What If You Have A Plaster Wall? In cases of plaster walls, stud finders might not sort you out, especially if your wall is very old. There are other methods you can use, as we will outline below. Find an electrical box. The basic construction of a wall dictates that studs will always join to light switches and electric boxes.

4.4 Tricks to Find Studs in a Plaster Wall - Instructables

Url:https://www.instructables.com/4-Tricks-to-Find-Studs-in-a-Plaster-Wall/

17 hours ago  · Because standard stud finders detect a change in density inside the wall, they don't work on lath and plaster – the density inside these walls is not constant enough.

5.10 Best Stud Finders For Plaster Walls in 2022 - House Grail

Url:https://housegrail.com/best-stud-finders-for-plaster-walls/

22 hours ago If you own an old house with plaster and lath walls, you may have discovered how utterly useless a stud finder can be. Most smaller items can be hung pretty securely anywhere on the wall by screwing into the wood lath, but for heavy things that weight more than 10-15 lbs, like large mirrors and TVs, you’ll need to learn how to find studs in a plaster wall. Don’t waste your money …

6.The 4 Best Stud Finders for Plaster Walls in 2022 that will …

Url:https://ninjadiy.com/best-stud-finder-for-plaster-walls/

8 hours ago  · The only issue with using a magnetic stud finder is that there is no way of telling where a stud starts and stops. Nonetheless, for its practicality, the CH Hanson 03040 is one of the best stud finders for plaster walls for the money.

7.How To: Find Studs in a Plaster Wall - The Craftsman Blog

Url:https://thecraftsmanblog.com/how-to-find-studs-in-a-plaster-wall/

17 hours ago Absolutely, you can use a stud finder to detect pipes, live AC wiring, rebar, nails and more on plaster walls. The catch, however, is that your stud finder of choice should be capable of maintaining precision on rough or textured surfaces such as a plaster wall.

8.Do Stud Finders Work? We Test on Drywall and Concrete …

Url:https://www.protoolreviews.com/do-stud-finders-work/

4 hours ago  · If you own an old house with plaster and lath walls, you may have discovered how utterly useless a stud finder can be. Most smaller items can be hung pretty securely anywhere on the wall by screwing into the wood lath, but for heavy things that weight more than 10-15 lbs, like large mirrors and TVs, you’ll need to learn how to find studs in a plaster wall. Don’t waste your …

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