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Minimizing False Positives

Is the stud you found really a stud?

To properly use a stud finder, scan your work area thoroughly and mark the location of every object indicated by the stud finder. Stud finders work by sensing density changes behind the wall, and other objects can be indicated, especially if they are very close to the wall. Do not assume everything is a stud.

1. Studs are a consistent width and distance apart - although construction standards can vary by country, so check your local building codes or standard practices for exact measurements. If you know how wide your studs are and how far apart they're likely to be placed, you can more accurately tell the studs apart from other elements that might be behind the wall.

2. Studs normally run from floor to ceiling, except above and below windows, and above doors.

3. Scan for studs at several different heights on the wall. Pipes and other objects will likely not give consistent readings from floor to ceiling, like a stud would.

4.You can switch to metal mode (if it is available on your tool) and scan vertically (up and down) to confirm that the target you've found is a stud.

5. Studs are normally about 4 cm wide, but humidity and different wall materials may cause studs to be indicated in a different width. However, all of the studs should be consistent in width, and anything that is indicated differently from all your studs is probably not a stud.

6. Always scan the surface using regular Stud Scan mode first. If you don't find anything, then switch to DeepScan mode. Use extra caution to confirm that you are finding studs and not something else when using DeepScan mode.

7. Be aware of walls that are likely to contain plumbing. For example, a living room wall may be common to a bathroom and contain plumbing for the sink, shower, or toilet.

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