Choose a keyboard tray that lets you type with the keyboard just below elbow height, your shoulders relaxed and the mouse within easy reach, in line with Health and Safety Executive posture guidance. A slide-out drawer may suit a desk whose seated height already works for you; if the desktop puts the keys too high, check a tray’s actual adjustment range as well as its mounting fit and the space it leaves for your knees.
If you type for sustained periods, keyboard position matters more than whether the tray simply hides beneath the desk. The Health and Safety Executive advises placing the keyboard just below elbow height and keeping shoulders relaxed.
If your seated desktop leaves the keyboard too high, look at how far a tray can lower the keys while preserving comfortable chair position, foot support and knee space.
A retractable tray can clear the work surface between writing sessions. Check that its usable area still accommodates your keyboard and the mouse you use for editing.
For a long manuscript, check your seated typing height before choosing a mounting style. Then measure the desk and your keyboard-and-mouse footprint; a workstation that moves the displays too is relevant only if you need to alternate between sitting and standing.
| Concern | What to check | Who this matters to |
|---|---|---|
| Typing height | Compare your seated elbow height with the keyboard’s installed height across the tray’s adjustment range. Check that lowering it will not obstruct your knees. | When I type for hours, I want the keys below my elbows without raising my shoulders; around 33% of consumers put typing height and posture first. |
| Desk fit | Measure desktop thickness, clear front-edge width and unobstructed space beneath the desk for clamps or rails. | If my desk has a drawer or cable tray underneath, I need a mounting arrangement that can actually fit; for around 27% of consumers, desk compatibility comes first. |
| Keyboard and mouse space | Measure the usable tray surface against your keyboard and mouse or mousepad, rather than relying on the width including clamps. | During editing, I switch between keys and mouse and need both within reach; around 27% of consumers prioritise that shared workspace. |
| Sit-stand movement | If both keyboard and displays must move, check the lift range, monitor limits, mounting requirements and cable reach. | If I write at both seated and standing heights, I need my screens and keyboard to move together; this is the primary need for around 13% of consumers. |
A tray that slides away can free the desktop yet leave the keys too high. The Health and Safety Executive advises placing the keyboard just below elbow height.
Measure your seated elbow position and compare it with the tray’s installed height settings before deciding whether a basic drawer offers enough adjustment.
A keyboard may fit on the tray while a clamp, rail or bracket conflicts with the desk edge, an apron, a drawer or a cable tray.
Check the exact model’s desktop-thickness range, clamp spacing and required clear space beneath the desk.
A narrow shelf can make mouse-heavy editing awkward. The Health and Safety Executive advises keeping the mouse within easy reach and using it with a straight wrist.
Measure the keyboard and mouse together, then check for enough usable side-by-side space or a stable separate mouse platform.
Keyboard position is only one part of a display-screen-equipment workstation. Chair height, screen position and working routine also affect the set-up.
Adjust the tray alongside the rest of the workstation. The Health and Safety Executive says employers must assess DSE workstations and address the risks identified.
The 93804 is a conventional under-desk drawer to consider when clearing the desktop matters and limited fixed-position adjustment suits your seated set-up.
Its clamp-on tray models illustrate why dimensions and adjustment must be checked against the exact variant.
Its keyboard systems are relevant when height, reach and tilt adjustment matter more than simply storing the keyboard.
The WorkFit-S is a workstation option for writers who need displays and keyboard to change height together, rather than a standalone tray.
No. A tray is one possible workstation adjustment, not a substitute for assessing display-screen-equipment risks. The Health and Safety Executive says employers must assess DSE workstations and address risks; keyboard height should be considered alongside the chair, screen and wider set-up.
The Health and Safety Executive advises placing the keyboard just below elbow height, with shoulders relaxed. Check the position while seated as you normally write, rather than judging it from the tray’s drop measurement alone.
If you use a mouse frequently while drafting or editing, make room for it within easy reach. The Health and Safety Executive advises using the mouse with a straight wrist; check the tray’s usable surface or the position of a separate mouse platform.
Measure desktop thickness, the usable front edge, clamp spacing and any obstruction beneath the desk against the exact model. For example, the UK-listed VIVO MOUNT-KB05E specifies a maximum desktop thickness of 3.2 cm and a clamp-to-clamp width of 82.6 cm.
Consider one when you need the keyboard and displays to move together between seated and standing work. Ergotron states that its UK WorkFit-S offers 23 in/58.4 cm of lift; before choosing that model, check monitor compatibility, desk mounting and whether the cables reach through the full movement.