The Edit — Smart Home
VESA and Studs: Will This TV Mount Fit Your Wall
A TV mount has to match 2 things: the 4 holes on the back of the TV, measured in millimetres, and the studs in the wall, usually 16 or 24 inches apart. How to read both before you buy.
This guide is research-led: we have not handled these units ourselves. If you buy through our links we may earn a commission — it never changes a pick. How we choose
This page explains the 2 checks a TV mount has to pass, the TV’s hole pattern and the wall’s studs. It ranks 2 stud finders by rating and then by how many owners rated them on 6 October 2026, as How we choose describes. Nothing here was handled, installed or tested.
Franklin Sensors ProSensor M210 13-Sensor Stud Finder
Good fit Finding the centre of a stud first time
Not for A buyer who wants no batteries
The Original StudBuddy Magnetic Stud Finder
Good fit A toolbox spare that never goes flat
Not for Walls with few or deep screws
VESA is the distance between the 4 holes, in millimetres
VESA 400 x 400 means 400 mm across and 400 mm down: the horizontal, then the vertical, distance between the centres of the threaded holes on the back of a TV. Most TVs have 4 such holes. The original pattern, from 1997, was a 100 mm square for monitors.
Most TV makers print the pattern in the manual and on the spec sheet. If it is missing, measure centre to centre with a tape and round to the nearest standard size.
Weight decides the screw size, not just the mount
The standard does not stop at the hole pattern. For large TVs it ties the pattern to a screw size and a weight rating, so a heavy TV uses thicker bolts.
A mount listing usually gives its own weight limit too. The USX MOUNT arm on TV wall mounts, compared, for example, states 77 lb and VESA up to 400 x 400 mm. Keep the TV well inside both figures.
Studs are generally 16 or 24 inches apart
Sanus, a TV mount maker, says in its installation guide that most wall studs are either 16 or 24 inches apart. A wall plate has to reach at least 1 stud, and a dual-stud mount needs 2, so the spacing decides which mounts can work on your wall.
A narrow plate on 24-inch studs may reach only 1. That is why some owners of a tilting mount with a 17-inch wall plate report trouble catching 2 studs.
Franklin Sensors ProSensor M210 13-Sensor Stud Finder
6,503 ratings at 4.6, a 13-sensor stud finder with live wire detection, which owners praise for showing the full width of each stud.
Current price shown on Amazon. We may earn a commission.
| Sensors | 13 |
|---|---|
| Also detects | Live wires |
6,503 ratings at 4.6. Owners praise the accuracy and the display that lights up the full width of each stud, plus the live wire warning. Some say it is not worth paying more than a basic finder, and a few report it failing after about 6 months.
Buy it if
- Finding the centre of a stud first time
Don't buy it if
- A buyer who wants no batteries
The Original StudBuddy Magnetic Stud Finder
16,081 ratings at 4.5, a magnet that finds the screws in a stud, made in the USA and needing no batteries.
Current price shown on Amazon. We may earn a commission.
| Works by | Magnet finds drywall screws |
|---|---|
| Power | None needed |
16,081 ratings at 4.5, the more-rated of the 2. Owners like that it needs no batteries and that it works on older 1960s drywall, finding the screws that hold the board to each stud. The magnet’s strength splits them: some find it strong, others say it sticks to nothing.
Buy it if
- A toolbox spare that never goes flat
Don't buy it if
- Walls with few or deep screws
Steel studs and masonry need different hardware
A stud finder will find steel studs, but the lag bolts packed with most mounts are made for wood. A 70-inch TV on an arm pulls hard on those 4 bolts, and a hollow steel stud gives them little to grip. Sanus tells owners with steel studs to call for special hardware rather than use the bolts in the box.
Brick and concrete need masonry anchors and a hammer drill, not the wood screws. If the wall is plaster on lath, a finder may struggle, and the magnet type that looks for nails often does better there.
Measure the TV, the wall and the seats in that order
Read 3 numbers off the TV’s spec sheet first: VESA pattern, weight and screen size. Then find the studs, and only then decide how high the screen goes, because height decides between a fixed and a tilting mount.
For the mounts themselves, TV wall mounts, compared ranks 6 across fixed, tilting and full motion. For the TV, see the best TVs of 2026.