Who needs this setup?

People comparing accounts and invoices

If accounting software, spreadsheets and invoice files need to remain visible together, a side-by-side layout reduces the need to switch between windows.

People working at smaller desks

Limited width or depth makes the choice between side-by-side arms, a vertical stack and a freestanding riser more consequential.

People with mixed or heavier monitors

Different screen weights and mounting fittings make it important to check each display separately against the chosen stand or arm.

What matters when choosing?

Start with the layout you need for accounts and invoices, then check both monitors and the desk against the exact stand or arm you plan to buy.

Concern What to check Who this matters to
Monitor and desk fit Check each screen’s mounting pattern and applicable weight limit. Measure the desk where a clamp, grommet or base would sit. If my monitors differ, I need to know that both will fit and that the mount will suit my desk. Around 36% of consumers put compatibility and installation first.
Side-by-side viewing Decide whether both screens need similar heights and whether either must rotate or move independently. When I compare invoice fields with accounts, I want both views in front of me rather than one above the other. Side-by-side viewing comes first for around 29% of consumers.
Screen adjustment Compare the chosen model’s height, tilt, rotation and reach with the positions you need while working. If I reposition screens as tasks change, I need enough adjustment without repeatedly moving the whole stand. Around 21% of consumers prioritise screen positioning.
Desk space Measure usable width, depth and rear clearance; allow room for paperwork and cable movement. On a narrow desk, I need room for documents as well as two displays and may accept a stacked layout. Preserving desk space is the main concern for around 14% of consumers.

Mistakes to avoid

  • Choosing an arm by screen size alone

    A screen can fall within an arm’s stated size range yet exceed its per-display weight limit or have a different mounting-hole pattern.

    Check the model, VESA pattern and applicable weight of each monitor against the exact arm’s specifications.

  • Overlooking the desk edge and underside

    A compatible monitor does not mean a clamp or grommet mount will fit the desk. Thickness, obstructions and rear clearance also matter.

    Measure the intended fixing point and compare it with the mount’s limits. If the desk cannot accept it, consider a freestanding riser.

  • Stacking screens solely to save width

    Vertical stacking changes an accounts-and-invoices comparison from left-to-right to top-to-bottom viewing.

    Keep screens side by side if you compare both views frequently; consider stacking when desk width is limited or the upper display mainly holds reference material.

  • Treating an adjustable arm as the whole workstation solution

    Screen positioning is only one part of a workstation used for regular display-screen work.

    Adjust the wider workstation too. Where you use display-screen equipment for work, follow your employer’s assessment process; the UK Health and Safety Executive says its guidance also applies to home workers.

Brands to consider for dual-monitor setups

Fellowes

The Tallo range includes several screen configurations and desk-mount options.

  • Fellowes UK lists VESA 75 × 75 mm and 100 × 100 mm plates and 32 cm of dynamic height movement for its Tallo range.
  • Confirm the capacity and fixing limits of the exact dual configuration rather than applying range-wide figures to every Tallo arm.

Ergotron

The LX Dual Stacking Arm, Tall Pole allows stacked or side-by-side screen positioning.

  • Ergotron specifies a capacity of 3.2–10 kg per arm and 33 cm of lift for that model.
  • Check whether its stacking arrangement and movement range suit the space available for your usual side-by-side layout.

Kensington

Its range includes space-saving, vertical-stacking and crossbar dual-monitor designs.

  • Kensington specifies two landscape screens of up to 32 inches and 9 kg each for its Vertical Stacking Dual Monitor Arm.
  • The fit and movement limits depend on the chosen design; check that model’s display and desk requirements.

StarTech.com

Its ARMSLMBARDUO dual arm has model-specific display and desk-mount specifications that can be checked before ordering.

  • StarTech.com UK specifies two VESA 75 × 75 mm or 100 × 100 mm displays of up to 32 inches and 8 kg each, with a 10–48 mm clamp or grommet mounting range.
  • Those limits describe ARMSLMBARDUO, not every StarTech.com dual mount.

Humanscale

The M8 Pro offers a configurable arm for different screen arrangements.

  • Humanscale states that an M8 Pro configured with optional crossbar support can hold two monitors of up to 12 lb each.
  • Check the selected configuration and both monitor weights; its dual-screen limit differs from its single-screen rating.

Dual-monitor stands on Joybuy

This dual-monitor stand is an option to consider for keeping accounts and invoices on separate displays. Check its fit against your monitors and desk before ordering.

DELL Pro Dual Monitor Stand MDS19

DELL Pro Dual Monitor Stand MDS19

Consider this dual-monitor stand if you want an accounts view beside invoice files. Confirm the applicable load limit for each display, the adjustment range and how the stand fits your desk before ordering.

View on Joybuy

Frequently asked questions

Do both monitors need VESA fittings for a dual monitor arm?

For an arm that attaches to the back of each display, both monitors need the arm’s required mounting pattern or a compatible adapter. Check each monitor separately; if one cannot be mounted, a freestanding riser may be a more suitable route.

Is a vertical stack useful for comparing accounts and invoices?

A vertical stack can work when desk width is tight or the upper screen mainly holds reference material. For frequent direct comparison between accounting figures and invoice fields, side-by-side positioning keeps the views next to each other.

Will a dual monitor arm clamp to any desk?

No. Match the exact mount’s thickness and clearance limits to the desk, including the edge shape and any obstruction underneath. StarTech.com UK, for example, specifies a 10–48 mm clamp or grommet mounting range for its ARMSLMBARDUO model.

Does an adjustable arm make a home workstation compliant with UK display-screen rules?

No: an arm alone does not settle the wider workstation requirements. The UK Health and Safety Executive says its display-screen-equipment rules cover workers using screens daily for continuous periods of an hour or more, including home workers; follow your employer’s workstation assessment process where those rules apply.

What should I check after fitting a dual monitor stand?

Check that both screens remain stable in the positions you use and that cables are not stretched or trapped when you move them. Follow the chosen product’s installation instructions and stay within its stated display and mounting limits.