VESA Standard

Monitor Mounting Guide

Ergotron mounts are compliant with the Mounting Interface Standard established by VESA©. Use our online tool to determine VESA Mount Compatibility and verify your monitor will attach to Ergotron products.

VESA Interface Standard Screen Size Display Weight Hole Mount Pattern


4" to 7.9"

≤ 4.4 lbs / ≤ 2 kg

50 x 20 mm


8" to 11.9"

≤ 10 lbs / ≤ 4.5 kg

75 x 35 mm


12" to 23.9"

≤ 30.8 lbs / ≤ 14 kg

75 x 75 mm or 100 x 100 mm


24" to 30.9"

≤ 50 lbs / ≤ 23.7 kg

200 x 100 mm


≥ 31"

≤ 250 lbs / ≤ 113.6 kg

200 mm increments

VESA Mount Interfaces

Ergotron products are engineered in accordance with the Flat Display Mounting Interface (FDMI) Standard, otherwise known as the Mounting Interface Standard (MIS), defined by VESA. When choosing a monitor, look for VESA Mounting Compliance for ease of attachment to any Ergotron TV wall mount, monitor arm or other VESA-compliant mounting solution.

The VESA standard defines dimensions of a display’s four-hole attachment interface and the screws used to fit those holes. It also dictates the placement of the hole pattern on the back of the display. For attachment to VESA mounts, ideally the hole pattern should be centered on a display’s back (denoted in a VESA label with the letter “C” as in VESA FDMI MIS-D, 100, C). A center-positioned pattern minimizes the torguing force applied to the mount, allowing it to hold a heavier load.

Today’s flat panel displays commonly use three variants of the standard …

VESA MIS-D, 100/75, C compliant displays are equipped with either a 100 x 100 mm or 75 x 75 mm square hole pattern, using M4 screws for attachment of the mount to the display. This is the most common interface for monitors weighing under 30 lbs (14 kg); small TVs and computer monitors usually feature the VESA MIS-D interface. Ergotron carries a comprehensive line of MIS-D-compatible products.

MIS-D, 100 x 100 mm

VESA MIS-E, C compliant displays are equipped with a 200 x 100 mm rectangular hole pattern, using M4 screws for attachment of the mount to the display. Mid-size displays sometimes use this interface; typical displays in this class weigh less than 50 lbs (23 kg). Ergotron carries MIS-E mounts as well as an adapter kit that converts an MIS-D mounting plate to hold an MIS-E display.

MIS-E, 200 x 100 mm

VESA MIS-F, C compliant displays have varied hole patterns that are spaced in 200 mm increments (e.g., 400 x 200 mm and 600 x 400 mm are both MIS-F hole patterns). M6 or M8 screws are used to attach the mount to the display. Heavier TVs with screens greater than 32" in size usually follow this variant. In practice, many displays in this class deviate from the standard in minor ways. For example, a 300 x 300 mm hole pattern is not uncommon. This is why most Ergotron brackets for MIS-F-class displays are designed to handle irregular hole patterns.

MIS-F, 200 x 200 mm

Custom Interface Adapters - If your monitor does not include a VESA MIS-D, MIS-E or MIS-F hole-mount pattern, a custom adapter interface may be available. Contact the monitor manufacturer or Ergotron to see if this option exists. If an adapter is not available, the display cannot be attached to VESA-compliant mounting solutions.

Attaching Apple Displays to VESA Mounts

Most Apple displays are not VESA compliant. To attach a non-VESA-compliant Apple display to a VESA mount, you may need an adapter bracket. Reference this guide when connecting a non-VESA-compliant Apple display to an Ergotron sit-stand workstation, monitor arm or computer wall mount.

Apple now offers iMac computers with built-in VESA interface. An iMac model from late-2012 to present cannot be retrofitted to include a VESA interface—the built-in VESA interface is only available at the time of purchase. If a VESA adapter is not available, choose a mount with a proprietary Apple interface.

VESA adapter by Apple
Apple VESA Adapter

Ergotron and the Establishment of the VESA Standard

In 1996, Ergotron-founder Harry Sweere traveled extensively to industry leaders around the world to lay the groundwork for the first mounting standard. Acting as the committee’s Group Leader, in 1997 the first VESA FPMPMI mounting interface standard was released. He went on to become the lead author of the revised and current VESA standard known as FDMI, which was introduced in 2002. A true visionary, Harry saw the need for a universal attachment interface on the back of flat-panel monitors and TVs, which would allow people to easily and affordably attach displays to ergonomic, articulating mounts.

Ergotron is a full member of the Video Electronics Standards Association (VESA), which is comprised of over 300 high-tech member companies who work on standards for the video electronics market that will shape the technology of tomorrow. VESA and the VESA Mounting Compliant logo are trademarks of the Video Electronics Standards Association.