find studs in wall
William Harris
Updated on June 23, 2026
Knock on the Wall with Your Knuckles
Studs sound solid (higher tone sound) when you knock against them. Wall areas without studs sound hollow (lower tone sound) when you knock against them. So to find a stud, simply knock against your wall to see what produces a solid sound.
Can I find the stud in the wall with my phone?
The Walabot DIY stud finder app is compatible with iPhone 7 or higher and Android phones running v9. 0 or above. These phones must be supportive of USB On-The-Go. This app requires the Walabot DIY device to operate.
How do you know if you found a stud in the wall?
Locate the switches and outlets, which indicate a stud.
At least one side of an electrical box must be mounted to a stud. To determine which side of the box the stud is on, use the “knock test” by rapping on either side of the switch or outlet. The side that returns a solid, versus hollow, sound is the stud side.
Can you find a stud by knocking?
As I mentioned above you can tap on the wall with your knuckle. Move left to right tapping on the wall and when you hear a different pitch that’s likely the stud. Once you find one location you can measure over 16 inches to find the next stud. This is a simple way to find studs.
Can you hang a TV on a wall without studs?
Can you mount a TV without studs? You can mount a TV without studs using anchors, toggle anchors, mounting plates, ceiling mounts, and other mounting options. Of course, you have to keep your TV’s size and weight in mind and choose the right option. Mounting a TV without studs can be daunting.
Can I use my iPhone as a stud finder?
First, no iPhone app can locate 2x4s because phone hardware generally doesn’t include an electromagnetic density sensor to find wooden studs.
Is there always a stud next to an outlet?
Yes, in general electrical outlets are installed directly next to a stud. However, apartments may have some different things going on: There may be metal studs. These are much harder to find by knocking.
How far apart are studs in walls?
The general spacing for wall studs is 16 inches on center, but they can be 24 inches.
How do you find studs behind drywall?
Here’s how to find a stud in the wall quickly and easily, with or without a stud finder:
Locate the nearest light switch or power outlet. Look for dimples in the wall. Use windows as a guide. Tap the wall. Drill a hole. Fish around with a wire hanger. Try a stud finder app. Or just use a stud finder!
Is there a free stud finder app?
Stud Finder app is the best stud finder on the store you can use it as a wall scanner stud detector, Wire & Pipe Locator and more
How many inches from a corner is a stud?
When a home is framed, the wall studs are usually spaced 16 or 24 inches apart. If you start in a corner and measure out 16 inches and you don’t find a stud, you should find one at 24 inches.
What does drilling into a stud feel like?
In some places, you’ll hear a hollow sound. Other areas will sound more “solid.” The “solid” sound indicates you have knocked on a stud. Studs are located about 16 to 24-inches apart. Measure this distance away from either side of the first stud and knock on the wall again to hear if you’ve hit another one.
Why do stud finders never work?
Finding Live Circuits Behind Walls
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.