A basic clamp-on pull-out tray is a sensible choice if you mainly want to clear a small desk without drilling, provided its clamps fit and the tray leaves usable room for your mouse. Consider tilt adjustment or an arm-based system when you need to change keyboard position, but check the required mounting hardware and compatibility first. The Health and Safety Executive advises considering the keyboard, mouse, desk and chair together rather than treating a tray as a complete workstation fix.
If you chose a compact keyboard to preserve desk space, a slide-away tray may free more of the work surface. Allow room for your mouse as well as the keyboard; tray sizes differ between the StarTech.com and BONTEC clamp-on models.
If the desk puts your keyboard at an awkward height, consider whether a tray can place it just below elbow height. The Health and Safety Executive also advises keeping the keyboard central with the screen and avoiding a twisted working position.
A clamp-on tray may suit a shared desk or one you do not want to modify. Check the desk edge, top thickness and clear space underneath before choosing a clamp-on model.
Consider it when: You want to put a compact keyboard and mouse below the desktop and slide them away without drilling.
Check the fit: The desk must accommodate the clamps; StarTech.com specifies a maximum top thickness of 2.3 in for KEYBOARD-TRAY-CLAMP1, while BONTEC specifies 40 mm for KMT01.
Consider it when: You need a no-drill tray with angle adjustment; Ergometric describes its Glider Lite as a sliding, tilting clamp-on tray.
Check the fit: Confirm the tray dimensions, desk-thickness limit and mouse space for your setup before choosing it.
Consider it when: You have, or intend to build, a compatible Ergotron LX Pro arm setup and want the keyboard and mouse platform to move with it.
Check compatibility: Ergotron says the LX Pro Keyboard Tray and Pivot attaches only to an LX Pro arm, not to legacy LX or other product lines.
Consider it when: Desk-edge clamping is unsuitable and a fixed workstation has a sturdy vertical mounting surface.
Plan the installation: Ergotron specifies different fastening requirements for its LX Wall Keyboard Arm depending on the wall structure.
| Concern | What to check | Who this matters to |
|---|---|---|
| Keyboard and mouse position | Compare the installed tray height with your seated elbow height. Check whether adjustment changes the position you need and keeps the mouse within easy reach. | For regular screen work, I need the keyboard at a comfortable height without reaching across the desk for the mouse; around 42% of consumers put working position first. |
| Desk fit and no-drill installation | Measure top thickness, clear front-edge width and underside clearance against the model’s clamp and rail requirements. | If I cannot drill into my desk, the tray must attach without a drawer or cable tray blocking it. Desk fit is the primary concern for roughly 33% of consumers. |
| Desktop space and mouse room | Compare the usable tray surface with your keyboard-and-mouse footprint, and check how far the tray projects when extended. | On a small desk, I want to slide the keyboard away but still have space to move the mouse while working; about 25% of consumers put reclaiming desktop space first. |
A compact keyboard can fit while leaving the mouse cramped or too far to one side. The Health and Safety Executive advises keeping the mouse within easy reach.
Measure the keyboard and the space you need to move the mouse, then compare both with the usable tray surface and any separate mouse platform.
A thick top, narrow clear edge, drawer or cable tray can obstruct a clamp-on installation even when the keyboard itself fits on the platform.
Compare the manufacturer’s desk-thickness limit and full clamp-to-clamp width with an unobstructed section of your desk.
StarTech.com specifies three installed height settings for KEYBOARD-TRAY-CLAMP1, while Ergotron’s LX Pro Keyboard Tray and Pivot requires a compatible LX Pro arm. They do not offer the same kind of movement or installation.
Decide whether you need a pull-out surface, height settings, tilt or arm movement, then check which mounting components that choice requires.
An arm-based or wall-mounted setup may also require compatible mounting equipment and more installation work.
A tray does not determine screen position, chair support or mouse reach. The Health and Safety Executive advises looking at the whole workstation when assessing display-screen work.
After installation, check keyboard height, screen alignment and mouse reach together; use your workplace assessment process for regular employer-provided display-screen work.
Its KEYBOARD-TRAY-CLAMP1 is a clamp-on pull-out option with a published keyboard-and-mouse platform size and discrete installed heights.
The KMT01 is a C-clamp pull-out tray for placing a keyboard below the desktop and sliding it away.
Its LX Pro tray and LX Wall Keyboard Arm serve different mounted-workstation arrangements rather than simple under-desk clamping.
Humanscale describes configurable keyboard systems with height and angle adjustment rather than a single standalone clamp-on tray.
No: keyboard width is only one measurement. Allow room for the mouse, its movement and cable routing, then compare that combined footprint with the tray’s usable dimensions.
Measure desk thickness, unobstructed front-edge width, space beneath the top for clamps and rails, and the room available when the tray extends. For the specific models, StarTech.com states a 2.3 in maximum desk thickness for KEYBOARD-TRAY-CLAMP1; BONTEC states a 40 mm maximum and 760 mm overall clamp-to-clamp length for KMT01.
Set it so the keyboard sits just below elbow height, with the keyboard central to the screen and the mouse within easy reach, following Health and Safety Executive posture guidance. If those positions remain awkward, reassess the chair, desk and tray together.
No. Ergotron specifies a sturdy vertical surface and provides fasteners for wood studs or concrete; steel-stud mounting needs an additional kit. Confirm the wall construction and appropriate fixings before installation.