Need to drill into a stud, but you don't know where the studs in your walls are? Here's how to find them without a stud finder.

Need to drill into a stud, but you don't know where the studs in your walls are? Here's how to find them without a stud finder.

You need to have nails or screws bite into that framing, not hit open space behind drywall, or the shelves or other items could come crashing down. How to use a sensor depends on what kind you have.