DeskSizer.Check my setup
INTERACTIVE DESK WIDTH PLANNER

How wide should your desk be for two monitors?

Start with the displays’ outside widths. Their diagonal sizes are not the widths you need to add.

Editable example: two Dell P2722H displays, a 20 mm gap and 50 mm at each side. These gaps are planning choices, not manufacturer minimums. Replace them with your own needs.

View my width plan ↓
Left display

Recorded outside width: 609.9 mm. Manufacturer source

Direct 100x100 VESA mounting described; follow maker screw and mounting instructions.

Right display

Recorded outside width: 609.9 mm. Manufacturer source

Direct 100x100 VESA mounting described; follow maker screw and mounting instructions.

Check depth using my measured zones

No default desk depth is inferred from screen diagonal. Measure the complete rear support/cable footprint and the front working zone you want to reserve; avoid counting the same area twice. This is a footprint sum, not a viewing-distance prescription.

YOUR WIDTH PLAN

1,339.8 mm

Total width including your entered gaps and side allowances.

Within entered width: 60.2 mm remaining.

LeftRightDesktop 1,400 mm · plan 1,339.8 mm

Width math: 609.9 mm + 609.9 mm + 1 × 20 mm gaps + 2 × 50 mm sides.

Depth: not assessed

Measure the rear equipment and front working zones if you need a depth estimate.

Front projection only: both displays upright, side by side and facing forward. Tilting, angling, portrait rotation, stand bases, wall clearance, viewing comfort, room access and clamp suitability need separate checks. This result does not approve a desk or a dual-monitor arm.

Check P2722H with a single arm →

Calculations stay in your browser. No layout measurements are sent to our usage endpoint.

A worked example before you enter anything

Two Dell P2722H displays each have a published outside width of 609.9 mm. With a chosen 20 mm gap and 50 mm at each side, the width plan is 1339.8 mm: 609.9 + 609.9 + 20 + 2 × 50.

The gap and margins are editable planning choices, not industry minimums. This example uses two upright displays facing forward; their heights in the drawing are illustrative.

Two different monitors?

Choose each exact model separately or measure each outside width. The calculator does not assume your second screen has the same bezel, aspect ratio or width as the first.

A laptop beside them?

Add the actual width of the open laptop or its stand. A third object also adds another copy of your chosen gap. A laptop behind a display or in a vertical holder needs a different measured layout.

A small desk?

Compare the measured usable width with the plan. If the plan exceeds it, change the arrangement or equipment and measure again. Angled or portrait screens and overhanging equipment are not modeled or approved by this calculation.

How deep should the desk be?

Diagonal size alone does not establish usable depth. In the optional depth section, enter the full rear equipment/cable zone and a separate front working zone. No guessed arm clearance or fixed viewing distance is added. A geometric result does not establish comfort or ergonomics.

Does an arm make two screens fit?

It may change the footprint, but the arm’s mounting and movement still need checking. Measure the clamp position. The current fit checker assesses single-screen kits individually; it cannot approve a dual-arm assembly or combined desktop load.

Considering one ultrawide instead? Compare the arm requirements.

Manufacturer evidence

Published specifications are the basis of these checks. We have not physically tested these installations. Sources apply to the recorded US configuration unless noted.