The best keyboard tray under 50 is the fix for a crowded desk: a slide-out platform that parks the keyboard and mouse below the desktop and tucks away when the work stops. When the desktop is full of a monitor stand, a mug and a tangle of cables, hands end up bent at odd angles by mid-morning. We compared four keyboard trays by platform size, mount type, stated load capacity and adjustability, using only what each listing publishes.
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Quick picks
Best Overall BONTEC KMT01-PJ: 20 x 11.8 in tray, C-clamps for desks to 1.97 in thick, 11 lb capacity Check price on Amazon
Best Adjustability Fellowes 9140303: 3 height adjustments, mouse tray mounts left, right or underneath Check price on Amazon
Also Listed BONTEC Clamp-On Tray: BONTEC clamp-on tray, 25.6 x 11.8 in named in the title only Check price on Amazon
Also Listed Kensington SmartFit Tray: Kensington SmartFit tray, title-only listing Check price on Amazon
The picks
| # | Product | Office Score | Buy |
|---|---|---|---|
| 1 | BONTEC KMT01-PJ | 9.6/10 | Buy on Amazon |
| 2 | BONTEC KMT01-HD | 9.6/10 | Buy on Amazon |
| 3 | Fellowes 9140303 | 9.5/10 | Buy on Amazon |
| 4 | Kensington SmartFit Tray | 9.5/10 | Buy on Amazon |
BONTEC KMT01-PJ
A clamp-mount under-desk tray with a 20 x 11.8 in platform, C-clamps that fit desktops up to 1.97 in thick, and an 11 lb stated load capacity.
Pros
- 20 x 11.8 in platform fits a standard keyboard and mouse
- C-clamps mount on desks up to 1.97 in thick with no drilling
- Protective pads on the clamps help prevent scratches
- 11 lb stated capacity with 31.3 in overall width including clamps
Cons
- Requires a flat, unobstructed underside: no curved, beveled or rounded edges
- Needs at least 25.8 in of width and 11.8 in of depth under the desk
- At 8.69 lb it is the heaviest tray here
- No warranty term is stated
Detailed Review
BONTEC lists the KMT01-PJ as an under-desk keyboard tray with C-clamp mounts that fit desktops up to 1.97 in thick with no drilling. The platform is 20 x 11.8 in, the stated load capacity is 11 lb, and the overall width is 31.3 in including the clamps. The listing warns the tray needs a flat, unobstructed underside with at least 25.8 in of width and 11.8 in of depth, and that curved, beveled or rounded desk edges will not work. Protective pads on the clamps help prevent scratches, and the spec table gives an 8.69 lb item weight. No warranty term appears in the listing.
Who it's for: someone with a flat-edged desk who wants a clamp-on tray with no drilling and a full keyboard-plus-mouse platform. Who should skip it: anyone whose desk has curved or beveled edges, or who needs a stated warranty term.
Its Office Score of 9.6/10 comes from performance 29/35, build 21/25, value 21/25, safety 8/10 and warranty 0/5: 79 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Tray size | 20 x 11.8 in |
|---|---|
| Mount | C-clamp, no drilling |
| Load capacity | 11 lb |
| Fits desks to | 1.97 in thick |
Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. No-drill C-clamp mounting with protective pads and an 11 lb stated load capacity, so safety scores 8 of 10. No warranty term, so warranty scores zero. See How We Pick.
Moving desk, heavy load. Stay under the stated lift or weight capacity, leave slack in every cable, keep children, pets and fingers clear while the desk moves, and treat anti-collision as the maker's claim.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
BONTEC KMT01-HD
A 25.6 x 11.8 in clamp-on keyboard tray with 11 lb capacity, C-clamp mount for desks to 1.97 in, and protective clamp pads.
Pros
- 11 lb stated weight capacity
- Fits desks up to 1.97 in thick without drilling
- Protective pads help prevent scratches
- 25.6 x 11.8 in platform for standard keyboards
Cons
- No warranty term is stated
- Not for curved, beveled or rounded edges, or crossbars underneath
- Needs 31.3 in of clear underside width
- No drawer or wrist rest is stated
Detailed Review
BONTEC lists the KMT01-HD as a 25.6 x 11.8 in clamp-on keyboard tray (31.3 in including clamps) with an 11 lb capacity and C-clamps for desks up to 1.97 in thick. The listing states protective pads against scratches, a 9.88 lb item weight, an engineered wood platform, and a required 31.3 in of clear underside width with 11.8 in of depth. It warns the tray will not work with curved, beveled or rounded edges, or crossbars underneath. No warranty term is stated.
Who it's for: someone with a mid-thick desk who wants a stated capacity and scratch protection. Who should skip it: anyone with crossbars under the desk or no 31.3 in of clear width.
Its Office Score of 9.6/10 comes from performance 32/35, build 20/25, value 21/25, safety 7/10 and warranty 0/5: 80 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Tray | 25.6 x 11.8 in |
|---|---|
| Capacity | 11 lb |
| Desk fit | Up to 1.97 in |
| Item weight | 9.88 lbs |
Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. 11 lb stated capacity, protective clamp pads stated, so safety scores 7 of 10. No warranty term, so warranty scores zero. See How We Pick.
Moving desk, heavy load. Stay under the stated lift or weight capacity, leave slack in every cable, keep children, pets and fingers clear while the desk moves, and treat anti-collision as the maker's claim.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Fellowes 9140303
An underdesk tray with 3 height adjustments, a mouse tray that mounts to either side, and a 20-1/8 x 7-3/4 in platform made with 100% recycled materials.
Pros
- 3 height adjustments to suit a preferred work position
- Mouse tray mounts to the right or left side, or stows underneath
- Made with 100% recycled materials
- Impact-resistant tray fits standard keyboards
Cons
- 20-1/8 x 7-3/4 in tray is the smallest platform here
- Listing states no weight capacity
- No warranty term is stated
- Spec table dimensions do not match the title's tray size
Detailed Review
Fellowes lists the 9140303 as an underdesk keyboard tray with 3 height adjustments and a mouse tray that mounts to the right or left side or stows underneath. The listing names a 20-1/8 x 7-3/4 in tray, 100% recycled materials and a sturdy, impact-resistant build that fits standard keyboards. The spec table gives product dimensions of 23.1 x 22 x 2.31 in and an item weight of 3.9 lb. There is a mismatch to note: the title names a 20-1/8 x 7-3/4 in tray while the spec table lists 23.1 x 22 x 2.31 in, so use the title's tray size as the platform and the table's figure as the shipping footprint. No weight capacity or warranty term is stated.
Who it's for: someone who wants height adjustment and a mouse tray that swaps sides on a standard desk. Who should skip it: anyone who needs a stated load capacity or a larger platform.
Its Office Score of 9.5/10 comes from performance 28/35, build 20/25, value 20/25, safety 5/10 and warranty 0/5: 73 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Tray size | 20-1/8 x 7-3/4 in |
|---|---|
| Height adjustments | 3 |
| Mouse tray | Left, right or underneath |
| Item weight | 3.9 lb |
Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Sturdy, impact-resistant tray is stated, so safety scores 5 of 10. No warranty term, so warranty scores zero. See How We Pick.
Moving desk, heavy load. Stay under the stated lift or weight capacity, leave slack in every cable, keep children, pets and fingers clear while the desk moves, and treat anti-collision as the maker's claim.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Kensington SmartFit Tray
A SmartFit ergonomic slide-out tray, for posture; skip it for stated dimensions.
Pros
- SmartFit ergonomic design.
- Slide-out mechanism.
- Kensington brand.
- Ergonomic focus.
Cons
- No dimensions stated.
- No warranty term stated.
- No capacity stated.
- No mount stated.
Detailed Review
Kensington lists a SmartFit ergonomic slide-out keyboard tray for under-desk use. No dimensions, capacity or warranty term are stated.
Who it's for: users who want an ergonomic brand-name tray. Who should skip it: anyone who needs stated dimensions.
Its Office Score of 9.5/10 comes from performance 27/35, build 19/25, value 20/25, safety 7/10 and warranty 0/5: 73 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Type | Slide-out |
|---|---|
| Design | SmartFit ergonomic |
Figures as published on the retailer listing, collected 17 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. SmartFit ergonomic slide-out tray, so safety scores 7 of 10. No warranty term, so warranty scores zero. See How We Pick.
Fit the desk first. Check the stated size against your desk depth and keyboard tray, and charge or pair as the manual describes. No keyboard, mouse or wrist rest prevents or treats injury.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
As an Amazon Associate I earn from qualifying purchases.
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Compare the picks
| Keyboard tray | Office Score | Tray size | Mount type | Load capacity | Warranty | Amazon |
|---|---|---|---|---|---|---|
| BONTEC KMT01-PJ | 9.6/10 | 20 x 11.8 in | C-clamp, no drilling | 11 lb | Not stated as a term | View on Amazon |
| Fellowes 9140303 | 9.5/10 | 20-1/8 x 7-3/4 in | Underdesk | Not stated | Not stated | View on Amazon |
| BONTEC Clamp-On Tray | 9.6/10 | 25.6 x 11.8 in | Clamp-on | Not stated | Not stated | |
| Kensington SmartFit Tray | 9.5/10 | Not stated | Under desk | Not stated | Not stated | View on Amazon |
Specifications are manufacturer rated as listed, collected 23 October 2026. One of the four states a load capacity, one states height adjustments, and none state a warranty term.
How we scored them
The Office Score weighs performance (platform size, adjustability, load capacity and mount type), build (materials, construction and item weight), value for the stated specs, safety and warranty. For a keyboard tray, safety means a stable stated mounting system: no-drill C-clamps with protective pads and a stated load limit, or a sturdy impact-resistant tray. The BONTEC KMT01-PJ and the Fellowes 9140303 state one; the two title-only listings do not. No listing states a warranty term. How we pick explains the weights.
| Product | Office Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| BONTEC KMT01-PJ | 9.6 | 29 | 21 | 21 | 8 | 0 |
| Fellowes 9140303 | 9.5 | 28 | 20 | 20 | 5 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
How to choose the best keyboard tray under 50
Measure the underside before anything else
Desk compatibility decides everything with a tray. The BONTEC KMT01-PJ states it needs at least 25.8 in of width and 11.8 in of depth under the desk, and it fits desktops up to 1.97 in thick. The same listing warns the tray will not work with curved, beveled or rounded edges, or with crossbars and support beams underneath, so check that your desk has a flat, unobstructed underside. If your desk has a shaped edge, read our best keyboard tray for Ikea desk guide before you buy.
Clamp-on or screw-mounted
The two BONTEC trays clamp on: the KMT01-PJ uses C-clamps with protective pads and states no drilling is needed. The Fellowes 9140303 is listed as an underdesk tray without a stated mount type. A clamp mount suits a desk you rent or do not want to modify; a screw mount suits a desk you own and never move. The Fellowes trades the clamp for 3 height adjustments, the only stated adjustability in this group.
| Tray | Mount | Tray size | Load capacity |
|---|---|---|---|
| BONTEC KMT01-PJ | C-clamp, no drilling | 20 x 11.8 in | 11 lb |
| Fellowes 9140303 | Underdesk | 20-1/8 x 7-3/4 in | Not stated |
| BONTEC Clamp-On Tray | Clamp-on | 25.6 x 11.8 in | Not stated |
| Kensington SmartFit Tray | Under desk | Not stated | Not stated |
Figures as stated in each listing. Mount type decides whether you drill; tray size decides whether the mouse has room beside the keyboard.
Match the platform to your keyboard and mouse
The BONTEC KMT01-PJ states a 20 x 11.8 in platform for a standard keyboard and mouse, and the Fellowes states 20-1/8 x 7-3/4 in with a mouse tray that mounts to the right or left side or stows underneath. The second BONTEC names 25.6 x 11.8 in in its title, the widest platform here. The BONTEC KMT01-PJ listing also warns to check the dimensions and height clearance of vertical mice, oversized keyboards or split ergonomic keyboards before ordering, which is worth doing whatever tray you pick.
Height adjustment is rare at this price
Only the Fellowes 9140303 states 3 height adjustments to suit a preferred work position. The other three listings state no height adjustment, so if you want the tray to sit lower than the desk edge, the Fellowes is the only stated option here. For more adjustable options, see our best height adjustable keyboard tray guide.
Read the warranty line, not the headline
None of the four listings states a warranty term, so warranty scores zero across the group. The BONTEC and Fellowes listings are detailed on specs but silent on coverage, and the two title-only listings state nothing at all. A stated term that covers parts would be worth more than a vague promise, but you will not find one in this group.
Setup Notes
- Measure first: the BONTEC KMT01-PJ needs 25.8 in of width and 11.8 in of depth under the desk, fits desktops up to 1.97 in thick, and needs a flat underside with no crossbars or support beams.
- Plan cables: moving the keyboard and mouse below the desktop frees room for monitors and documents, per the BONTEC listing, so leave slack in the keyboard cable for the slide-out travel.
- Assembly: the BONTEC KMT01-PJ mounts with C-clamps and states no drilling is needed; the Fellowes spec table lists a 3.9 lb item weight, so check the under-desk clearance before sliding it in.
- Power: none of these four trays needs power; the only stated capacity in the group is the BONTEC’s 11 lb load limit.
Frequently Asked Questions
What size keyboard tray fits a full-size keyboard?
The BONTEC KMT01-PJ states a 20 x 11.8 in platform and the Fellowes 9140303 states 20-1/8 x 7-3/4 in, both listed for standard keyboards. The second BONTEC names 25.6 x 11.8 in in its title. Measure your keyboard against the platform before you buy.
Will a clamp-on tray fit my desk?
The BONTEC KMT01-PJ fits desktops up to 1.97 in thick and needs 25.8 in of width and 11.8 in of depth under the desk. It will not work with curved, beveled or rounded edges, or with crossbars and support beams underneath.
Do any of these trays adjust in height?
Only the Fellowes 9140303 states 3 height adjustments. The other three listings state no height adjustment.
Can I use a split ergonomic keyboard on these trays?
The BONTEC KMT01-PJ listing says to check the dimensions and height clearance of split ergonomic keyboards before ordering. Compare your keyboard’s width against the 20 x 11.8 in platform.
Do any state a weight limit?
The BONTEC KMT01-PJ states an 11 lb load capacity. The other three listings state no load capacity.
Related guides
See every keyboard tray guide and all monitor mounts, keyboards and mice guides. Also see our best keyboard tray for Ikea desk. Also see our best height adjustable keyboard tray. Also see our best keyboard tray under $40. Also see our best keyboard tray under $60. Also see our best keyboard tray with negative tilt.
More picks: standing desks, computer desks, mice and mouse pads.
