Can wall scanners function on plaster walls?

While wall scanners were primarily designed for use on drywall, they can still be effective on plaster walls with proper adjustments. Magnetic stud finders are generally not recommended for plaster walls. As plaster walls have additional layers, such as the wooden lath, the magnets might be attracted to the wrong objects, yielding inaccurate results.

On the other hand, electronic stud finders and radar stud finders can deliver reliable results on plaster walls. Electronic stud finders measure the change in density caused by the wooden lath, enabling them to locate the studs accurately. However, it is essential to keep in mind that plaster walls can be thicker than drywall, potentially leading to a reduced detection depth.

Tips for Using Wall Scanners on Plaster Walls

Here are a few tips to maximize the performance of wall scanners on plaster walls:

1. Calibration: Always calibrate your wall scanner according to the manufacturer’s instructions before use, as each scanner operates differently.
2. Slow and steady: When scanning plaster walls, move the scanner slowly and steadily to ensure accurate detection. Rushing might result in missed studs or false positives.
3. Multiple scans: Conduct multiple scans over the same area of the wall to confirm the presence of studs and minimize the chance of false readings.
4. Experiment with scanning depth: Adjust the scanning depth setting on your wall scanner to ensure optimal detection on plaster walls.

While plaster walls can present a challenge for wall scanners, both electronic and radar stud finders can yield effective results with some adjustments. By understanding the construction of plaster walls and following the tips mentioned above, you can confidently use a wall scanner to locate studs, electrical wires, and pipes behind plaster walls. Remember, practicing proper scanning techniques and calibrating your device are crucial for accurate results. With the right tools and techniques, your home improvement projects and wall hangings on plaster walls can be carried out with ease and precision.