Monitor Arms & Mounts

A monitor arm frees the desk under the screen and lets you set height and distance properly — which is the single biggest posture improvement most desks can make, because the top of the screen should be at about eye level and few stock stands go that high.

Three things must match before anything else.

VESA pattern. The hole spacing on the back of the monitor, in millimetres — commonly 75×75 or 100×100, with larger screens using 200×200 or more. Check your monitor’s specification. Some screens need an adapter plate.

Weight rating. Every arm states a range. A screen that is too heavy will droop or drift downward; one that is too light for a gas-spring arm will float upward. Both are the same mistake.

Mounting. A desk clamp grips the back edge and needs a suitable overhang; a grommet mount goes through an existing hole. Check the desk thickness against the clamp’s range.

After that it is preference: fixed mounts are cheapest, gas-spring arms move easily, and dual and triple arms hold several screens.

The range covers Ergotron, Kensington, StarTech, Peerless, Fellowes, Dell, HP and Digitus.