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Looking for Studs (in mah walls)

GrundlestiltskinGrundlestiltskin Behind you!Registered User regular
edited May 2010 in Help / Advice Forum
So I bought this sonar-based stud sensor from the hardware store and began the process of looking for studs so that I could mount my new TV on the wall when it gets here. The stud finder manual suggests that studs are typically 16" or 24" apart.

For the most part that seems to be the case. However, I've found one spot where it seems like there are two studs within 4" of each other. What could I be sensing? Would there randomly be two studs that close together, or is there probably something else in one of those spots? Thoughts?

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Posts

  • adytumadytum The Inevitable Rise And FallRegistered User regular
    edited May 2010
    Duct work, piping, structural support or a cross brace.

    adytum on
  • GrundlestiltskinGrundlestiltskin Behind you!Registered User regular
    edited May 2010
    adytum wrote: »
    Duct work, piping, structural support or a cross brace.

    So should I assume the one that's evenly spaced with other studs is a stud and avoid the other spot entirely?

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    3DS FC: 2079-6424-8577 | PSN: KaeruX65 | Steam: Karulytic | FFXIV: Wonder Boy
  • FiggyFiggy Fighter of the night man Champion of the sunRegistered User regular
    edited May 2010
    Stud finders are often hilariously inaccurate. Simply measuring 16" is a much more reliable method. Then, tap in a finishing nail to verify.

    Be wary of electrical work, but your stud finder should have an electrical sensor on it as well... although that often goes off for no reason.

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  • adytumadytum The Inevitable Rise And FallRegistered User regular
    edited May 2010
    adytum wrote: »
    Duct work, piping, structural support or a cross brace.

    So should I assume the one that's evenly spaced with other studs is a stud and avoid the other spot entirely?

    That's a fairly safe assumption. Also, when you do drill, drill tentatively until you're sure of what you're drilling into.

    adytum on
  • FiggyFiggy Fighter of the night man Champion of the sunRegistered User regular
    edited May 2010
    adytum wrote: »
    Duct work, piping, structural support or a cross brace.

    So should I assume the one that's evenly spaced with other studs is a stud and avoid the other spot entirely?

    It's probably just another stud. You should be able to determine if it's duct work, piping, or electrical simply by thinking about where those things would be running. Duct work is the easiest to determine.

    Just decide where you want the TV and go from there. There is very little behind your walls that would absolutely prevent you from mounting a TV there.

    If you're mounting a flat screen, you also have to consider how you're going to run your wires. If you want to run them through the wall, you'll need to install a recessed outlet behind the television, because you can't feed high-voltage cable (the power cord) through dry wall. It's against code.

    In the process of doing all of this, you may need to cut open a section of the wall anyway.

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  • GrundlestiltskinGrundlestiltskin Behind you!Registered User regular
    edited May 2010
    Figgy wrote: »
    adytum wrote: »
    Duct work, piping, structural support or a cross brace.

    So should I assume the one that's evenly spaced with other studs is a stud and avoid the other spot entirely?

    It's probably just another stud. You should be able to determine if it's duct work, piping, or electrical simply by thinking about where those things would be running. Duct work is the easiest to determine.

    Just decide where you want the TV and go from there. There is very little behind your walls that would absolutely prevent you from mounting a TV there.

    If you're mounting a flat screen, you also have to consider how you're going to run your wires. If you want to run them through the wall, you'll need to install a recessed outlet behind the television, because you can't feed high-voltage cable (the power cord) through dry wall. It's against code.

    In the process of doing all of this, you may need to cut open a section of the wall anyway.


    I live in an apartment. I'm very wary of doing any home modification beyond what is "necessary." We're just going to mount the TV above the stand the current TV sits on, and run the wires down the wall into the appropriate outlets. Probably bundled together.

    Grundlestiltskin on
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  • eternalbleternalbl Registered User regular
    edited May 2010
    If one of those 2 spots is necessary to putting up your wallmount, knocking on the wall might help. The more hollow the knocks sound, the further from a stud you are. It can be difficult, but with your stud finder, just telling which of the 2 is the stud should be pretty easy as the stud will brace the drywall much more than any sort of pipe or ductwork.

    eternalbl on
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  • FiggyFiggy Fighter of the night man Champion of the sunRegistered User regular
    edited May 2010
    Ah, in that case, I recommend wire channels. They are basically white channels that you can run down the wall (usually with two sided tape) to feed your wires through. They can also be painted to match the wall.

    515Cdcb0rNL.jpg

    Unless you don't mind seeing the wires hanging, then that works too.

    Your job is fairly easy at this point though. Just tap in a nail or drill a tiny hole to verify the mounts are where you think they are. Don't always trust the stud finder.

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  • Eat it You Nasty Pig.Eat it You Nasty Pig. tell homeland security 'we are the bomb'Registered User regular
    edited May 2010
    It's very possible that there's something else in the wall that's setting of the stud finder, and it's also possible that there are two studs four inches apart. Especially if the building's old there might have been modification or repair done at some point, or just wacky construction.

    I would use the one that's in the right place if that works, and only try the other if you need to. Either way just go in slowly with a finishing nail or a thin drill bit until you hit wood.

    Eat it You Nasty Pig. on
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  • Roland_tHTGRoland_tHTG Registered User regular
    edited May 2010
    A strong magnet for locating the screws/nails holding the drywall in place is often more accurate than a stud finder.

    Roland_tHTG on
  • Mojo the AvengerMojo the Avenger Registered User regular
    edited May 2010
    A strong magnet for locating the screws/nails holding the drywall in place is often more accurate than a stud finder.

    that's clever

    Mojo the Avenger on
  • GrundlestiltskinGrundlestiltskin Behind you!Registered User regular
    edited May 2010
    Weird thing about the studs too - I found them at one height, but then when I dropped the finder about a foot it can't find the studs anymore. What gives?

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    3DS FC: 2079-6424-8577 | PSN: KaeruX65 | Steam: Karulytic | FFXIV: Wonder Boy
  • Roland_tHTGRoland_tHTG Registered User regular
    edited May 2010
    Do you know what's on the other side of the wall?

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  • GrundlestiltskinGrundlestiltskin Behind you!Registered User regular
    edited May 2010
    Do you know what's on the other side of the wall?

    Our bedroom.

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    3DS FC: 2079-6424-8577 | PSN: KaeruX65 | Steam: Karulytic | FFXIV: Wonder Boy
  • eternalbleternalbl Registered User regular
    edited May 2010
    Do you know what's on the other side of the wall?

    Our bedroom.

    Are you on the ground floor? Could the foundation be the lower portion of the wall?

    eternalbl on
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  • GrundlestiltskinGrundlestiltskin Behind you!Registered User regular
    edited May 2010
    eternalbl wrote: »
    Do you know what's on the other side of the wall?

    Our bedroom.

    Are you on the ground floor? Could the foundation be the lower portion of the wall?

    Nope, 4th floor.

    Grundlestiltskin on
    3DS FC: 2079-6424-8577 | PSN: KaeruX65 | Steam: Karulytic | FFXIV: Wonder Boy
  • tsmvengytsmvengy Registered User regular
    edited May 2010
    A strong magnet for locating the screws/nails holding the drywall in place is often more accurate than a stud finder.

    that's clever

    That's what a stud finder was before these fancy electronic doohickeys.

    tsmvengy on
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  • GrundlestiltskinGrundlestiltskin Behind you!Registered User regular
    edited May 2010
    tsmvengy wrote: »
    A strong magnet for locating the screws/nails holding the drywall in place is often more accurate than a stud finder.

    that's clever

    That's what a stud finder was before these fancy electronic doohickeys.

    What's annoying is I had the choice between a $5 magnet studfinder and a $25 sonar studfinder. OBVIOUSLY I had to get the fancy one.

    Grundlestiltskin on
    3DS FC: 2079-6424-8577 | PSN: KaeruX65 | Steam: Karulytic | FFXIV: Wonder Boy
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