Measuring and Layout — FAQ
Do electronic stud finders really work better than magnetic ones?
Electronic scanners detect wood density changes, while magnetic finders only locate metal fasteners. For finding actual stud centers through drywall, electronic models are far more accurate and faster, especially multi-sensor units that don't require sliding.
What's the difference between edge finders and center finders?
Edge finders locate stud edges, forcing you to mark both sides and find the middle. Center finders identify the stud core directly, saving time and reducing math errors. For DIYers, center-finding technology is worth the small premium.
Can stud finders detect plastic water pipes?
No, most electronic stud finders cannot detect non-metallic pipes. They locate pipes indirectly by finding metal brackets or by detecting density changes in some cases. Always assume pipes exist near plumbing fixtures and use a dedicated pipe detector for bathroom/kitchen work.
Why does my stud finder give different readings on the same spot?
Inconsistent readings usually mean calibration errors, low batteries, or sliding too fast. Multi-sensor arrays eliminate most calibration issues. Try resetting the unit, replacing batteries, and moving slower. If problems persist, the sensor may be damaged.
How do I know if my wall has metal studs?
Switch your scanner to metal detection mode. Metal studs produce strong, consistent signals across their entire width, while wood studs show as narrower density peaks. Most scanners beep differently for metal versus wood targets.
Are 7-in-1 scanners better than 5-in-1 models?
The extra modes often include features like laser levels or bubble rulers rather than improved detection. For pure stud finding, 5-in-1 units perform identically. Choose based on whether you need the additional tools, not just the higher number.
