Choose the screen arrangement before the arm: a single adjustable arm suits a shared call-and-script display, while a dual or stacked arrangement keeps a separate script visible throughout a call. Check each monitor’s weight without its stand, mounting pattern and the desk’s fixing space against the exact arm; a large or deep ultrawide may need a model rated for its particular weight and depth.
If the script must stay visible while the call fills another screen, independently positioned displays let you choose a side-by-side or stacked layout. A portrait script screen may also be useful if the monitor and arm both support rotation.
If you change desk height regularly, check that the arm’s adjustment range lets you reposition the screen for both sitting and standing without hitting nearby shelves, walls or desk fittings.
For a heavy, deep or curved display, match the exact monitor’s weight, depth and mounting pattern to the arm variant. A screen-size limit alone does not establish that the combination will fit.
Decide whether the script needs its own screen, then check the movement you need and whether the monitors and desk can accept the chosen mount.
| Concern | What to check | Who this matters to |
|---|---|---|
| A separate script view | For two screens, check independent positioning, the intended side-by-side or stacked layout, and mounting compatibility for each display. | I need to read the script without covering the call or repeatedly switching windows. Around 42% of consumers put a separate script view first. |
| Sit-stand adjustment | Compare the exact arm’s height and reach adjustment with the space around your desk, and check its supported monitor-weight range. | When I change desk height, I want to bring the display back into a usable position without rearranging the workstation. For around 33% of consumers, easy repositioning is the primary concern. |
| Mount compatibility | Check display-only weight, mounting pattern and any depth restrictions; measure desk thickness and the clearance needed by the fixing. | A heavy or curved screen, or a desk edge obstructed by fittings, makes fit the deciding issue for me. Compatibility comes first for around 25% of consumers. |
Displays with the same diagonal measurement can have different weights, depths and mounting patterns. Ergotron lists a 3.2–11.3 kg range for the cited LX Desk Monitor Arm, while its HX Desk Monitor Arm supports displays up to 19.1 kg; those limits belong to different models.
Check the monitor manufacturer’s weight without the stand, mounting pattern and depth against the specifications for the exact arm variant.
A frame, cable tray or wall can obstruct the fixing even when the desktop looks suitable. Ergotron specifies a 1.2–3.2 cm desk-edge thickness range for its cited LX under-mount C-clamp, along with installation-clearance requirements.
Measure the intended mounting point, including space below and behind the desktop, before choosing a clamp or another documented fixing option.
A mount that permits two screens does not, by itself, establish where the script will be comfortable to read. Kensington describes side-by-side and stacked positioning for its SmartFit One-Touch dual arm, but the useful arrangement depends on your screens and available space.
Decide whether the script will sit beside or above the call display, and whether it needs portrait rotation; then check each arm’s available adjustments.
Screen placement is only part of a display-screen workstation. The UK Health and Safety Executive also addresses furniture, lighting, glare and working conditions in its guidance.
Set up the arm alongside the rest of the workstation. Where the Health and Safety Executive’s display-screen equipment criteria apply to your work, use your employer’s workstation assessment process.
Its monitor-arm range includes single, tall-pole, sit-stand, dual and heavy-duty configurations.
Its range includes single and dual arms, including models intended for side-by-side or stacked screens.
Its monitor-arm line includes single, dual and expandable multi-monitor configurations.
Its Flo line includes a single-monitor arm and an expandable Flo Modular system.
Not if one monitor can show both the call and script, or you are comfortable switching windows. Choose a dual or stacked arrangement when the script must remain visible independently; a single arm cannot create a separate screen area.
Yes, if the exact arm permits the required rotation and supports the monitor’s weight and mounting pattern. Check that the rotated screen also has enough clearance from the other display and nearby fittings.
Record the monitor’s weight without its stand and its mounting pattern, then measure the usable desk edge, desktop thickness and space below and behind the intended fixing point. Clamp requirements vary: Ergotron specifies a 1.2–3.2 cm desk-edge range for its cited LX under-mount C-clamp.
For workers who use display screen equipment daily as part of normal work for continuous periods of an hour or more, the UK Health and Safety Executive says employers must carry out a workstation assessment. An arm can help position a screen, but it does not replace an assessment of the whole workstation.
Follow the exact model’s installation and adjustment instructions, and check that cables do not snag across the movement you use. Adjust tension only as its manufacturer directs and keep the display within the published load range.