An under-desk keyboard tray does one plain job: it lifts the keyboard and mouse off the desktop onto a platform that slides out below the desk edge. That frees the surface above for a notepad, a coffee or a second screen's base, and it lets you slide the whole board out of the way when you are done. Nearly all of them clamp onto the desk edge with no drilling, so the decisions that actually matter are physical, not clever: how wide the platform is, how far it pulls out, how thick an edge the clamp will grip, and whether the height is fixed or adjustable. This guide puts those four first, and rates three trays you can buy in the UK on the figures their listings actually give, not on how roomy a photo makes them look.
Top picks
1. VIVO Large Keyboard Tray (69 x 28 cm platform, extra-sturdy C-clamp) - Best Overall
HSP Score: 9.2 / 10 - A large, extra-sturdy clamp-on tray that fits most desks and keyboards. The sensible default.
Capability 9.4/10 - Versatility 8.5/10 - Build 8.9/10 - Value 8.9/10 - Fit 9.8/10
Fit for this guide: The large, extra-sturdy default: a 69 by 28 cm platform that clamps to most desks and takes a full keyboard and mouse.
Every pick here is scored out of 10: four marks rate the product and are the same in every guide, and the fifth rates its fit for this guide - how we test and score.
Reach for this one first: it covers the common case without asking you to measure anything exotic. The platform is 69 by 28 cm, roomy enough that the mouse sits next to the keyboard instead of in front of it, and the mount is VIVO's heavier C-clamp design rather than a token bracket. It is a fixed-height tray, so it does the sliding-out job and nothing more, which for most desks is exactly the brief. Being one of the wider trays here, it wants a decent run of clear desk edge to clamp to, which the measuring section below walks through.
Pros
- ✓ 69 by 28 cm platform takes a full keyboard and a mouse side by side, not stacked
- ✓ Extra-sturdy C-clamp mount rather than a light bracket, so a heavier keyboard sits steady
- ✓ Clamps on with no drilling, so it comes off again cleanly when you move desks
Cons
- ✗ Fixed height, so it slides out but will not raise or lower the keyboard
- ✗ One of the wider trays here, so it wants a good run of clear desk edge to clamp to
Who it's for: Most people who want the keyboard and mouse off the desktop on one wide, steady tray and nothing more.
Who it's not for: Anyone who wants to change the keyboard's height, or whose desk has no clear front edge to clamp.
2. Duronic DKTPX2 Under-Desk Keyboard Tray (68 x 28 cm, two C-clamps) - Best Budget
HSP Score: 8.8 / 10 - A two-clamp tray that fits keyboard, mouse and mat for the least money. The spend-less route.
Capability 8.9/10 - Versatility 8.0/10 - Build 8.5/10 - Value 9.4/10 - Fit 8.9/10
Fit for this guide: The spend-less tray that still fits a keyboard, mouse and mat, steadied by a clamp at each end.
The honest budget case: at a smaller outlay this Duronic tray does the part that matters, which is to get the keyboard and mouse off the desktop onto a platform almost the same size as the overall pick. Its 68 by 28 cm board takes a keyboard, a mouse and a standard mouse mat, and it is rated to hold up to 5kg. The detail that sets it apart from a bare bracket is that it clamps at both ends, one at each side, rather than on a single central mount, so the platform has less flex when you lean a hand on one corner. Install is tool-free. The trade against the overall pick is reach and pedigree rather than size: it pulls out 21.5cm, which is enough to use but not the longest here, and it is the less established of the two mounts. For a tray you fit once and forget, the saving is a fair one.
Pros
- ✓ Clamps at each end, so the 68 by 28 cm platform flexes less under a hand
- ✓ Fits a keyboard, mouse and a standard mouse mat, rated to 5kg
- ✓ Tool-free install and the lowest outlay of the three
Cons
- ✗ Pulls out 21.5cm, shorter than the larger VIVO trays
- ✗ Fixed height, and a 5kg limit is modest if you load the tray with more than a keyboard and mouse
Who it's for: Anyone who wants the keyboard and mouse off the desk for the least money, with a clamp at each end for steadiness.
Who it's not for: People who want the longest pull-out or an adjustable height, who should read the two VIVO picks.
3. VIVO Large Height-Adjustable Keyboard Tray (27 x 11 in, C-clamp) - Best Premium
HSP Score: 8.9 / 10 - A large clamp-on tray that adjusts for height as well as sliding out. The buy-up for setting keyboard height.
Capability 9.4/10 - Versatility 9.4/10 - Build 8.9/10 - Value 8.5/10 - Fit 8.5/10
Fit for this guide: The buy-up for anyone who wants to set the keyboard's height, not just slide a fixed tray in and out.
The reason to pay up for this VIVO over the fixed overall pick is a single feature that the others do not have: height adjustment. Its 27 by 11 inch platform clamps on in the same way, but the mount lets you set the tray above or below the desktop rather than leaving it at one fixed drop. That matters when the desk itself sits at the wrong height for you and cannot be changed, or when more than one person uses the same desk and wants the keyboard at a different level. It is the same clamp-on job as the overall pick with one extra axis of fit, and you pay for the mechanism. If your desk is already at a height that suits you, that adjustment is spend you may never use, which is what the value mark reflects.
Pros
- ✓ Sets the keyboard above or below the desktop, not just a single fixed drop
- ✓ Large 27 by 11 inch platform takes a full keyboard and mouse
- ✓ Same no-drilling C-clamp fit as the overall pick, with the extra height range
Cons
- ✗ Costs more than the fixed overall pick for a feature a fitting desk does not need
- ✗ An adjustable mount has more parts to set than a fixed tray, so it takes a little longer to dial in
Who it's for: Anyone on a desk at the wrong height, or a shared desk, who needs to set the keyboard level rather than accept one drop.
Who it's not for: A desk already at a comfortable height, where the fixed overall pick does the same job for less.
Quick verdict
For most desks the VIVO Large Keyboard Tray (69 x 28 cm platform, extra-sturdy C-clamp) is the one to buy: a wide, steady platform on a heavier clamp, fixed height, no drilling. If you want the same job done for less, the Duronic DKTPX2 Under-Desk Keyboard Tray (68 x 28 cm, two C-clamps) is almost the same size and clamps at each end for steadiness. And if your desk sits at a height you cannot change, the VIVO Large Height-Adjustable Keyboard Tray (27 x 11 in, C-clamp) adds the one thing the others lack, a keyboard height you can set.
What decides a keyboard tray
A clamp-on keyboard tray is bought on four physical measurements, in order.
- The desk edge the clamp has to grip. This is the one that stops most trays fitting, so check it first. The clamp needs a flat, accessible front edge with nothing right underneath it. A front apron panel under the lip, or a top thicker than the clamp will open, are the usual blockers. It is the same measuring job as fitting a monitor arm to the front of the desk, and our monitor arm desk-fit guide walks through measuring the edge and the no-clear-edge fallback.
- Platform size against your keyboard and mouse. Match the board to your kit: a number-pad keyboard with the mouse riding along too needs the wide trays here (about 69cm across), while a compact keyboard, or a mouse kept up on the desktop, frees you to pick a narrower one.
- Pull-out distance. This sets how far the keyboard comes out from under the desk toward you. More reach lets you push the board fully away when you want the desktop clear; the budget tray here pulls out 21.5cm, the larger VIVO trays more.
- Fixed or adjustable height. Most trays sit at one fixed drop below the desktop, which is fine if the desk is already at a height that suits you. If it is not, the adjustable pick lets you set the keyboard level instead.
Once the tray frees the desktop, the other half of a tidy setup is where the cables run. Routing the keyboard and mouse leads so a sliding tray does not drag them is the job of our desk mat and cable management guide. And if the reason you are lowering the keyboard is that it sits too high for your hands rather than too close, a wrist rest solves a different part of the same setup.
How we chose
These three trays are spec-checked, not hands-on, and we would rather say so plainly than dress up testing we have not done. For each one we opened its current Amazon UK listing, took down the measurements that settle whether a clamp-on tray fits and works (platform width and depth, how far it slides out, the mount type, whether the height is fixed or adjustable, and the weight rating when the seller prints one), and marked all three on the one rubric every guide here uses. When a listing leaves a figure out we leave it out too: that is why neither VIVO tray shows a weight rating, since their pages do not state one. Nothing on this page is sponsored, and you will not find a price or a star count quoted, because both move from day to day and the live listing is the only honest place to read them.
FAQ
Q: Will a keyboard tray mark or damage my desk? A: A tightened clamp bears on the desk edge, so the thing to protect is that edge, not the desktop. The trays here use padded clamp faces that spread the grip, which a solid wood or laminate edge takes without complaint. A thin veneer, a glass top or a painted edge is where you would slip a scrap of felt or card under the clamp first.
Q: Can I still use a desk drawer with a tray fitted? A: Often not, because a sliding tray wants the same space under the front edge that a centre drawer uses. If your desk has a drawer right where the keyboard would sit, plan to mount the tray off to one side of it, or check the tray clears the drawer before you buy.
Q: Does a keyboard tray work with a standing desk? A: Yes. It clamps to the desktop and travels up and down with it, so the keyboard stays in reach at either height. There is nothing extra to set once it is on; it simply rides along with the surface as the desk moves.
Q: A tray, or just lower the desk? A: If your desk height already adjusts, dropping the desk is the simpler move. A tray is the answer when the desk is fixed at a height that suits writing or the monitor but higher than you want the keyboard, since it lowers only the keyboard and mouse and leaves the desktop where it is. Our standing desk height guide covers setting a desk's own height.
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