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FDMI: Key Facts About Display Mounting Compatibility

FDMI is VESA’s family of flat-display mounting-interface standards, commonly known as the VESA mount standard. Learn how patterns work and what to check before attaching a display to a mount.

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The Flat Display Mounting Interface (FDMI) is VESA’s family of standards for the physical mounting connections used by flat displays and compatible mounting equipment. It is commonly called the VESA mount standard or MIS. To check whether a display and mount fit, match the display’s hole pattern and position with a pattern the mount supports, then verify the display’s weight and the product-specific installation requirements.

What does FDMI mean?

FDMI stands for Flat Display Mounting Interface. VESA—the Video Electronics Standards Association—uses the term for standards covering the mounting interface on a flat display and the corresponding interface on stands, wall brackets, and other mounting apparatus. “VESA mount” and “Mounting Interface Standard” (MIS) are common names for this family of standards. VESA’s standards overview describes its scope.

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The overview covers displays from 102 mm (4 inches) to 2286 mm (90 inches) diagonal and applications such as desktop, wall, overhead, mobile, and specialty mounting. That range describes the overview’s scope; it does not mean every display in that size range uses the same pattern—or necessarily uses a VESA interface.

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What is a VESA mounting pattern?

In everyday use, a VESA pattern usually means the spacing between the mounting holes on the back of a display. The holes may form a square or rectangle. The standard also concerns where the pattern is positioned on the display, so compatibility is not determined by hole spacing alone. The display and mount interfaces need to correspond. VESA’s overview and its FAQ describe the interface and bracket-hole question.

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A pattern written as 100 × 100 mm means the centers of the holes are 100 mm apart horizontally and 100 mm apart vertically. The dimensions are measured center to center, not from the outer edges of the holes. Eaton’s guide to finding a VESA pattern illustrates this measurement.

How to check whether a display and mount are compatible

  1. Find the display’s pattern. Check its manual or specification sheet first. The manufacturer may also list mounting details in its installation documentation. Eaton’s guidance explains how to identify a pattern.
  2. Measure if the pattern is not specified. Locate the mounting holes and measure from center to center horizontally and vertically. Record both dimensions; do not assume the pattern is square.
  3. Check the mount’s supported pattern. Confirm that its documentation lists the display’s pattern. A VESA label by itself does not show that the mount supports every pattern.
  4. Check the load and intended use. Verify the mount is rated for the display’s weight and suits the intended location, such as a desk, wall, or ceiling. Compare the mount’s documented limits with the display’s specifications.
  5. Follow the installation instructions. Check both products’ documentation for screw size and length, spacers, clearance, and any other installation requirements. These details are not universal.

What else affects fit?

Even when the hole pattern matches, the installation still depends on the specific display and mount. The mount’s supported load and intended mounting location matter, as do any model-specific clearance or hardware requirements. Use each product’s instructions for the final check; the general FDMI overview and FAQ are not a substitute for the applicable specification or installation directions.

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VESA’s public overview and FAQ explain the standards’ purpose, but they do not provide a complete current table of patterns, tolerances, screw details, or load limits. For a particular installation, rely on the display manual, mount documentation, and applicable FDMI specification rather than treating an example pattern as a complete list.

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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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