VESA Mount Sizes and Patterns, Explained
A VESA pattern is the spacing of the four mounting holes on the back of a screen, in millimeters, width by height. A 400x400 screen has holes 400 mm apart both ways. A mount fits when it accepts that pattern and is rated for the screen's weight. When the pattern does not match, an adapter plate bridges it.
The pattern is formally called VESA FDMI. If the mount and the screen name the same number, they bolt together directly. If they do not, an adapter plate almost always bridges them.
What are the common VESA sizes?
Small monitors and TVs run 75x75 and 100x100; mid-size TVs 200x100, 200x200, and 300x300; large panels 400x200, 400x400, and 600x400; very large commercial panels 800x400 and up. As a rough rule, bigger screen means bigger pattern, but the only reliable source is the screen's own spec sheet or a tape measure.
How do you measure a TV's VESA pattern?
- Lay the screen face down on padding.
- Measure center-to-center between the left and right holes, in millimeters - that is the first number.
- Measure center-to-center between the top and bottom holes - that is the second.
If the holes are recessed or the back is curved, note the depth: rails may need the nylon spacers supplied with the mount so they sit flush (the screws must not bottom out).
What if the TV's pattern does not match the mount?
A mount does not have to be replaced because a screen's pattern outgrew it. Expert Mounts VESA adapter plates bridge the difference: the 11AD001 adapts to 200x100, the 22AD001 to 400x200, and the 22AD003 set covers 200, 300, and 400 patterns. Ceiling installs pick the head by pattern instead - the mount heads run from 200x200 to 600x400.
Does a matching pattern guarantee a fit?
No. A matching pattern is necessary, not sufficient: the screen must also weigh less than the mount's rated capacity, listed on every spec page. Screen size ranges on mounts are guidance; the pattern and the weight decide the fit.
Every Expert Mounts spec sheet lists the exact VESA range its hardware accepts. The line is sold factory-direct at VideoMountStore.com; fit questions: 855-566-8687.
Common questions
What does VESA 400x400 mean?
The four mounting holes on the back of the screen sit 400 mm apart horizontally and 400 mm apart vertically, measured center to center. The first number is always the width, the second the height.
How do you find a TV's VESA size?
Read it off the screen's spec sheet, or measure it: lay the screen face down on padding and measure center to center between the left and right holes, then between the top and bottom holes, in millimeters. Measuring is more reliable than a retail listing.
What if the TV's VESA pattern does not match the mount?
An adapter plate bridges the gap without replacing the mount. The Expert Mounts 11AD001 adapts to 200x100, the 22AD001 to 400x200, and the 22AD003 set covers 200, 300, and 400 patterns. On a ceiling install the head is chosen by pattern instead: the mount heads run from 200x200 to 600x400.
Is VESA size the same as screen size?
No. Bigger screens generally use bigger patterns, but the relationship is not fixed and two TVs of the same diagonal can use different patterns. Screen size ranges printed on a mount are guidance. The pattern and the weight decide the fit.
Can a TV with no VESA holes be mounted?
Some screens use a proprietary hole pattern or none at all. Those need a manufacturer-specific bracket, or a custom plate drilled to the screen. Expert AV Products builds custom plates to spec from the hole pattern, screen size, and weight.