How to measure a small desk before buying accessories

A 1200 mm desk is not 1200 mm of available space. The useful measurement is what remains when you are working. This guide produces a short fit brief for a laptop stand, monitor riser or cable tray, using the equipment you already own. Every worked number below is illustrative, not a product specification or required clearance.

Measure a working desk, not an empty rectangle

Leave your keyboard, mouse, monitor and everyday notebook in their normal positions. Put away only items you genuinely intend to remove permanently. Measure the clear area where the accessory will go: its available width, depth and any shelf above it. Write in millimetres to avoid losing small differences through rounding.

In an illustrative layout, a desk is 600 mm deep but the space behind the keyboard is only 235 mm. A stand with a 220 mm base depth leaves 15 mm within that measured area. That arithmetic is only a first check; it does not prove there is space for the laptop, plugs or your hands.

Draw three separate outlines

Use paper to mark the accessory's proposed base. Add a second outline for the equipment it supports, then a third for things that move or project beyond it: an open laptop screen, a monitor adjustment, a drawer or a connected plug. These outlines answer different questions. A base fits on the desk; the full arrangement must fit in the room.

Do not borrow a missing depth from a product photograph or packaging label. If the seller only gives an overall dimension, ask what it measures. An adjustable stand may occupy different space in different positions; record the position used in the specification.

Check the space beneath and behind

Photograph the underside from a position where the frame, drawers and rear edge are visible. Note desktop thickness at any proposed attachment point, plus the flat area available underneath. A cable tray and a monitor clamp can compete for the same strip of space even when their top-down outlines look separate.

Also note where the desk meets a wall, skirting board or window ledge. Record the outlet location without assuming an existing cable will reach a new route. If the desk moves, make a second sketch for its other working positions. These observations can eliminate a purchase before you spend time comparing finishes.

Try the daily tasks against the outline

With equipment still safely supported in its normal arrangement, use the paper plan to rehearse opening a notebook, moving the mouse and reaching a frequently used connector. The paper is a space-planning aid, never a temporary support for a monitor. Include occasional tasks such as signing a document or connecting a camera.

WorkSafe Victoria advises choosing workstation equipment around the tasks and equipment it must accommodate. Our practical interpretation is to preserve room for your actual routine. If the only way an accessory fits is by removing something you use every day, revise the layout before choosing the accessory.

Keep a fit brief you can compare with listings

Finish with one note containing the clear working rectangle, overhead space, desktop construction and thickness, underside obstructions, equipment models, and any restriction on attaching accessories. Label each value as measured, manufacturer-stated or unknown. Save the relevant product drawing beside it so you can see which measurement belongs to which item.

An illustrative decision might read: base depth must fit inside 235 mm; laptop overhang still needs checking; rear clamp space is obstructed. That is more useful than searching for a small stand. Recheck the brief when you change a keyboard, monitor or desk position, because the available space changes with the setup.

Sources and further reading

WorkSafe Victoria: Office layout and design
Reviewed 15 October 2026. Supports the short attributed point about planning around tasks and equipment; the measurement worksheet and numerical example are FAQEver's original planning exercise.