Last updated: July 13, 2026
The strongest way to hang anything on a wall is to drive the screw into a stud — the wooden framing behind the drywall. You don't need a fancy tool to find one. Here's how to locate a stud without a stud finder (the way most people do it), how a stud finder helps, and what to do on trickier walls and ceilings.
The bottom line: if you can find a stud, screw straight into it — it's stronger than any anchor. Can't get a stud where you need to fasten? Then use a wall anchor sized to the weight (the anchor selector picks one). This guide is the fork: stud if you can, anchor if you can't.
How to find a stud without a stud finder
This is how most people do it, and it's reliable once you know the tricks. Studs are the vertical wood framing behind the drywall, and they're evenly spaced — so if you find one, you can find the rest by measuring.
- Use the 16" (or 24") rule. Studs are almost always 16 inches apart, on center (measured center-to-center) — some newer or non-load-bearing walls use 24". Find one stud and the next is 16" to the left or right, and so on.
- Start at an outlet or switch. Electrical boxes are almost always screwed to the side of a stud. Find the stud edge right beside the box, then measure 16" from there to find the next.
- Tap the wall. Knock along the wall with a knuckle: over a hollow cavity it sounds deep and hollow; over a stud it sounds higher, tighter and solid. Tap across until the sound changes.
- Look for fasteners. Rows of slightly dimpled or popped drywall screws/nails run down the center of a stud; baseboard and trim are nailed into studs too. A raking light across the wall makes the dimples show.
- Use a magnet. Slide a strong magnet (or a magnetic stud finder) over the wall — it catches on the steel drywall screws or nails, which are driven into the studs. Mark where it grabs and you've found the framing.
- Measure from a corner. Framing usually starts from a corner, so studs often fall at 16", 32", 48"… from the corner of the room. It's a good place to start checking.
Cross-check with two methods before you drill — tap to get close, then confirm with a magnet or an outlet measurement. When you're sure, mark the stud's center; a stud is only about 1½" wide, so aim for the middle.
Using a stud finder
A stud finder makes it quicker. Electronic ones sense the change in density behind the drywall as you slide them across: you calibrate on a hollow spot, then move sideways until it signals the stud's edges — an "edge" finder marks each edge (the center is between them), while a "center" finder points to the middle. Magnetic stud finders are simpler and battery-free: they find the metal screws and nails in the studs rather than the wood itself. Either way, confirm with a tap or a second pass before you commit.
Ceilings, plaster and stucco
The same ideas work, with caveats:
- Ceilings: the framing is joists, usually 16" apart (sometimes 24"). Fixtures and rows of fasteners help, and the tap test still works — just remember gravity makes hitting the joist even more important up there.
- Plaster and lath: older plaster-over-wood-lath walls are thick and dense, so tapping and electronic finders struggle. The magnet trick (finding the nails in the lath/studs) tends to work best, along with measuring 16" spacing.
- Stucco / masonry: exterior stucco over metal lath fools most finders; you're often better off fastening with the right masonry anchor than hunting for a stud.
Found a stud? Screw into it. Didn't? Use an anchor.
This is the whole decision. If a stud lands where you need to fasten, drive a screw into it — that's the strongest, cheapest hold, and for heavy items (a TV mount, a cabinet, a loaded shelf) it's the only thing you should trust. If there's no stud where you need it, that's exactly what wall anchors are for — pick one sized to the weight.
No stud where you need it?
Find the right wall anchor