Mixed monitors need two actual widths, not one duplicated diagonal

Editable geometric planning example · US scope · editorial review 2026-10-27

SHORT CAPTION
Mixed Dell widths: 609.9 mm + 537.8 mm. With the chosen allowances, the plan is 1,267.7 mm, not the same as two identical screens.
https://desksizer.com/examples/#mixed-monitor-widths

LONG POST
A mixed-screen layout needs a width for each model. Dell publishes 609.9 mm for the P2722H and 537.8 mm for the P2422H. With a chosen 20 mm gap and 50 mm at each side, this side-by-side plan totals 1,267.7 mm. An illustrative 1,400 mm desktop leaves 132.3 mm in that width comparison.

Using the same diagonal-based estimate twice would lose the difference between the two actual panels. The calculator lets you choose each model independently or enter each measured outside width. A stand or support that is wider than the panel needs a separate footprint review.

All allowances are editable, and the displays are modeled upright and facing forward. The remaining width is not spare room guaranteed for every speaker, cable or notebook; include the space you actually need in the plan. Depth, viewing comfort and mounting suitability are separate tasks. This is a geometric example from published dimensions, not a photo or report of a customer workstation.

OPEN THE ILLUSTRATIVE INPUTS
https://desksizer.com/tools/dual-monitor-layout/?example=mixed-monitor-widths

GUIDE
https://desksizer.com/tools/dual-monitor-layout/

SOURCES
Dell — https://dl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitor/esuprt_monitor_p_series/dell-p2422h-monitor_user's-guide_en-us.pdf (catalog review 2026-10-26)

LIMITS
Front projection only. Choose your own gaps and allowances.
Not a customer testimonial, physical installation test, price promise or product endorsement.
No commission tracking is active in this material. Ordinary manufacturer sources and DeskSizer tool links only.

ILLUSTRATION
https://desksizer.com/share-cases/mixed-monitor-widths.png