Make room on
the desk.

Use width, height and depth together.

Read the dimension labels in the manufacturer’s drawing. Many monitors list separate figures for “with stand” and “without stand,” and a height-adjustable stand may list a range rather than one number. Record width from left to right, height from bottom to top at your intended stand position, and depth from front to back.

Use packed or shipping dimensions only when checking delivery or storage in the box. The monitor chart lists main-unit dimensions, with stand, and preserves the relevant measurement notes.

Measure the surface the monitor can actually use.

Record the clear width and front-to-back depth of the desk area. A keyboard tray, cable grommet or the desk’s front lip can occupy part of that space. If you plan to use a monitor arm with a desk clamp, measure the clamp’s required depth at the back edge separately from the monitor’s own footprint.

Check the cable connection positions on the monitor. A plug or a cable bend at the rear can extend beyond the stated body depth. Keep that allowance separate from the body measurements so it is not accidentally counted twice.

For a simple dimensional example, a 24-inch-wide monitor centered on a 36-inch usable desk leaves 12 inches in total, or 6 inches on each side. That arithmetic says nothing about the clearance a particular arm or dual-monitor setup needs.

Measure from the desk to whatever sits above it.

Place the tape vertically on the desk surface and measure to the underside of any shelf, wall cabinet or monitor light bar you plan to mount above. Use the stand’s tallest adjustment position for this check, not its resting height, since raising the screen for a standing desk or a taller chair changes the figure.

Monitor height also affects posture. OSHA’s guidance places the top of the screen at or slightly below eye level, with the display centered about 15 to 20 degrees below horizontal eye level. OSHA eTools: Computer Workstations — Monitors ↗

If your measured overhead clearance is 10 inches and the monitor’s maximum stand height is 8 inches, the remaining vertical space is 2 inches. That is a hypothetical physical check, separate from the eye-level position that determines a comfortable viewing height.

A clear rectangle is not the whole installation.

If you plan to replace the included stand with a monitor arm, check the VESA mounting pattern on the back of the panel, typically 75 × 75 mm or 100 × 100 mm, and confirm it matches your arm. Spacers are sometimes needed to clear the monitor’s housing. Dell support: installing a third-party VESA mount ↗

For a wall or arm installation, use the exact bracket’s reach and weight rating rather than the desktop footprint. The without-stand body dimensions in the chart’s notes are the relevant figures once a mount replaces the stand, not the with-stand desk footprint.

Height-adjustable and tilt-adjustable stands change the overall footprint through their range. Check your model’s minimum and maximum figures rather than assuming the chart’s single recorded position covers every setting.

Keep these measurements together.

• Monitor model code and the source drawing.
• Body width, height and depth, with stand, and any stated exclusions.
• Usable desk width and depth at the intended position.
• Vertical clearance to any shelf or cabinet above, at the tallest stand position.
• VESA mounting pattern and arm compatibility, if applicable.
• Cable routing space and port positions.

Enter the body dimensions and available space in the monitor fit planner. Use the result to find dimensional conflicts, then finish with the manufacturer’s mounting and ergonomic guidance.