Q. I need to install shelves in various rooms. I was given a stud finder to help determine the best places to hang the shelves. For the life of me, I can’t figure out how to use it! Any advice? A.

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Studs run vertically behind the drywall in your home or apartment. Knocking, using ...

We may receive a commission on purchases made from links. Locating a wall stud is essential if you're trying to hang anything heavy on the wall, and not doing so is one of the biggest mistakes you ...