An arm is a DSE question before it is a tidiness one

Under UK display screen equipment guidance the top of the screen should sit at or a little below eye level, roughly an arm's length away. Most monitors on their factory stand sit too low for most people, which is why laptop and monitor work produces neck and shoulder complaints. A monitor arm solves that properly and gives the desk back, a riser solves the height alone and costs far less, and for a single fixed-height user a riser is often the honest answer.

Check VESA and weight together

Arms mount to the VESA pattern on the back of the screen — usually 75 x 75 mm or 100 x 100 mm on desktop monitors. Some slim and consumer-styled screens have no VESA holes at all and need a model-specific adapter. Then check the weight: gas-spring arms are rated for a range, and a screen below the minimum floats up while one above the maximum drifts down. Large curved and ultrawide panels are heavier than they look, so take the figure from the spec sheet.

How it fixes to the desk

A C-clamp grips the back edge and needs clear access behind — the quickest fitting and the usual default. A grommet mount passes through an existing cable hole and is more secure and tidier, but commits you to that position. Check the desk thickness against the clamp range, and for a heavy dual arm check the desk itself can take a point load at the back edge.

Dual and multi-screen

Dual arms carry two screens on one fixing and keep them aligned. Two screens of different sizes rarely line up well on a shared crossbar, so for a mixed pair choose independent arms. Beyond two screens, the desk depth usually becomes the constraint before the mount does.

Brands

Ergotron, Fellowes, StarTech.com, Neomounts and Hannspree, in desk, wall, pole and freestanding mounts.

Trade pricing and business accounts are available for UK organisations, and bulk orders are welcome — request a quote.