When the keyboard and mouse crowd the top of a small desk, a best white keyboard tray slides the typing surface underneath and gives the desktop back. We compared white under-desk trays by size, capacity, desk thickness limit, extension and warranty, using only what each listing publishes. Clamp mounts dominate this group, so desk thickness and clamp span decide fit before size does.
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Quick picks
Best Overall VIVO Clamp-on Keyboard Tray: 20 inch tray with 3-year warranty and sturdy C-clamps Check price on Amazon
Best Capacity ERGOMAKER Under Desk Tray: 22 lb capacity with 7.9 inch extension and protective pads Check price on Amazon
Best Sturdy suptek Under Desk Tray: Dual steel clamps, non-slip pads and an edge stopper Check price on Amazon
Best Heavy Load ETHU Foldable Desk Tray: 33 lb capacity on a solid metal frame with adjustable height Check price on Amazon
Best Wide AX WABER Under Desk Tray: 27.3 inch tray for a wider keyboard and mouse layout Check price on Amazon
The picks
| # | Product | Office Score | Buy |
|---|---|---|---|
| 1 | VIVO Clamp-on Keyboard Tray | 9.6/10 | Buy on Amazon |
| 2 | ERGOMAKER Under Desk Tray | 9.6/10 | Buy on Amazon |
| 3 | suptek Under Desk Tray | 9.5/10 | Buy on Amazon |
| 4 | ETHU Foldable Desk Tray | 9.5/10 | Buy on Amazon |
| 5 | AX WABER Under Desk Tray | 9.5/10 | Buy on Amazon |

VIVO Clamp-on Keyboard Tray
A white clamp-on keyboard tray measuring 20 by 11 inches for a small keyboard and mouse.
Pros
- 20 by 11 inch tray with 26 inches including clamps for small desks
- C-clamps attach to the desk without damage, per the listing
- Extends up to 8.5 inches from the desk edge
- Limited 3-year Manufacturer Warranty is stated
Cons
- Capacity of up to 11 lbs is lower than the wider trays here
- Not compatible with desktops that have beveled edges
- Smallest tray surface in this group at 20 by 11 inches
- Spec table adds a 5 inch dimension not explained in the bullets
Detailed Review
VIVO lists a 20 by 11 inch under-desk tray, 26 inches including clamps, in alloy steel, with sturdy C-clamps, a maximum extension of 8.5 inches from the desk edge, a desk thickness limit of 1.25 inches, a capacity of up to 11 lbs and a limited 3-year Manufacturer Warranty. The listing describes the tray as ergonomic and states hardware and instructions are provided. The spec table gives product dimensions of 20 by 11 by 5 inches, adding a third figure the bullets do not explain, so the bullets are followed here for the surface size.
Who it's for: small desks that need a compact white tray with a stated warranty. Who should skip it: desks with beveled edges, or setups needing more than 11 lbs of capacity.
Its Office Score of 9.6/10 comes from performance 28/35, build 21/25, value 20/25, safety 3/10 and warranty 4/5: 76 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 20 x 11 inches, 26 inches including clamps |
|---|---|
| Capacity | Up to 11 lbs |
| Desk | Up to 1.25 inches thick |
| Extension | Up to 8.5 inches from desk edge |
Figures as published on the retailer listing, collected 24 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Sturdy C-clamps hold the tray tightly in place, so safety scores 3 of 10. limited 3-year Manufacturer Warranty. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 4 of 5. 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.

ERGOMAKER Under Desk Tray
A white under-desk tray measuring 25.6 by 11.8 inches with a slide-out design for keyboard and mouse.
Pros
- 25.6 by 11.8 inch tray for keyboard, mouse and small accessories
- Capacity of up to 22 lbs
- Extends up to 7.9 inches and retracts 11.3 inches under the desk
- Reinforced C-clamp mounts with protective pads, no drilling holes needed
Cons
- No warranty term is stated
- Desk surface must not exceed 1.38 inches in thickness
- Item weight of 8.47 pounds adds to the desk load
- No height or angle adjustment is stated
Detailed Review
ERGOMAKER lists a 25.6 by 11.8 inch under-desk tray, 29.7 inches including clamps, with reinforced C-clamp mounts and protective pads, a capacity of up to 22 lbs, a desk thickness limit of 1.38 inches, an extension of up to 7.9 inches from the desk edge and a retraction of 11.3 inches under the desk. The listing states all hardware and instructions are included and no drilling holes in the desk are needed. The listing describes the tray as ergonomic.
Who it's for: desks that need a wider white tray with a higher capacity and a deep retraction. Who should skip it: buyers who need a stated warranty or a stated height adjustment.
Its Office Score of 9.6/10 comes from performance 30/35, build 21/25, value 21/25, safety 4/10 and warranty 0/5: 76 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 25.6 x 11.8 inches, 29.7 inches including clamps |
|---|---|
| Capacity | Up to 22 lbs |
| Desk | Up to 1.38 inches thick |
| Extension | Up to 7.9 inches, retracts 11.3 inches |
Figures as published on the retailer listing, collected 24 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Reinforced C-clamp mounts and protective pads keep the tray steady without damaging the desk, so safety scores 4 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.

suptek Under Desk Tray
A white under-desk tray measuring 25.6 by 11.8 inches with dual steel clamps and an edge stopper.
Pros
- 25.6 by 11.8 inch tray for keyboard, mouse and small accessories
- Dual steel C-clamps with non-slip pads
- Edge stopper keeps the keyboard from falling when pushing back
- Updated slide system for pulling and pushing the tray
Cons
- Capacity of up to 11 lbs
- No warranty term is stated
- Does not fit desks over 1.57 inches thick
- Package dimensions in the spec table differ from the tray dimensions in the bullets
Detailed Review
suptek lists a 25.6 by 11.8 inch under-desk tray, 30 inches including clamps, in alloy steel, with dual steel C-clamps, non-slip pads and an edge stopper, a capacity of up to 11 lbs and a desk thickness limit of 1.57 inches. The listing states all hardware and instructions are included and no drilling holes in the desk are needed. The spec table gives package dimensions of 16.1 by 12.91 by 5.47 inches, which describe the package rather than the tray, so the bullets are followed here for the tray size.
Who it's for: desks that need a sturdy white tray with pads and an edge stopper. Who should skip it: desks over 1.57 inches thick, or setups needing more than 11 lbs of capacity.
Its Office Score of 9.5/10 comes from performance 29/35, build 21/25, value 20/25, safety 5/10 and warranty 0/5: 75 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 25.6 x 11.8 inches, 30 inches including clamps |
|---|---|
| Capacity | Up to 11 lbs |
| Desk | Up to 1.57 inches thick |
| Material | Alloy Steel |
Figures as published on the retailer listing, collected 24 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Non-slip pads protect the desk and an edge stopper keeps the keyboard from falling, 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.

ETHU Foldable Desk Tray
A white foldable desk extender tray measuring 25.6 by 11.4 inches for a full-size keyboard and mouse.
Pros
- 25.6 by 11.4 inch tray fits a full-size keyboard and mouse with room for a phone
- Capacity of up to 33 lbs, the highest stated here
- Solid metal frame with powder coating for rust resistance
- Clamp-on design with height and angle adjustment
Cons
- No warranty term is stated
- No desk thickness limit is stated
- Bullets name a Fydeamer part for the armrest, a different brand name
- Spec table lists a 0.1 inch third dimension with no explanation
Detailed Review
ETHU lists a 25.6 by 11.4 inch desk extender tray with a solid metal frame and powder coating, a capacity of up to 33 lbs, a clamp-on design with height and angle adjustment, and instructions included for one-person assembly. The listing describes the tray as ergonomic and states a response within 24 hours for questions. The bullets name a Fydeamer part for the armrest, which does not match the ETHU brand in the title, so the title is followed here for the brand.
Who it's for: desks that need the highest stated capacity with a full-size keyboard and adjustable height and angle. Who should skip it: buyers who need a stated desk thickness limit or a stated warranty term.
Its Office Score of 9.5/10 comes from performance 32/35, build 22/25, value 21/25, safety 0/10 and warranty 0/5: 75 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 25.6 x 11.4 inches |
|---|---|
| Capacity | Up to 33 lbs |
| Material | Solid metal frame, powder coating |
| Item weight | 9.2 pounds |
Figures as published on the retailer listing, collected 24 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. This product does not plug in or run on a battery, so safety is not part of its score. 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.

AX WABER Under Desk Tray
A white under-desk tray measuring 27.3 inches with a slide-out platform for keyboard and mouse.
Pros
- 27.3 inch width for keyboard, mouse and small accessories
- C-clamps attach without damage and adjust for user convenience
- Extends up to 5.7 inches from the desk edge
- Hardware and instructions are included for assembly
Cons
- Bullets give two different depths, 11 inches in the title and 8.3 inches in the first bullet
- No warranty term is stated
- Spec table dimensions differ from the title and bullets
- Not compatible with desktops that have beveled edges
Detailed Review
AX WABER lists a 27.3 inch under-desk tray, 32.5 inches including clamps, with sturdy C-clamps, a capacity of up to 11 lbs, a desk thickness limit of 1.9 inches and a maximum extension of 5.7 inches from the desk edge. The title gives a depth of 11 inches while the first bullet gives 8.3 inches, and the spec table gives 17.52 by 12.99 by 2.95 inches, so the title is followed here for the main size and the depth conflict is noted. The listing states hardware and instructions are provided.
Who it's for: wide desks that need a white tray with a broad surface and a 1.9 inch desk thickness limit. Who should skip it: desks with beveled edges, or buyers who need a single consistent depth figure in the listing.
Its Office Score of 9.5/10 comes from performance 27/35, build 20/25, value 20/25, safety 3/10 and warranty 0/5: 70 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 27.3 inches, 32.5 inches including clamps |
|---|---|
| Capacity | Up to 11 lbs |
| Desk | Up to 1.9 inches thick |
| Extension | Up to 5.7 inches from desk edge |
Figures as published on the retailer listing, collected 24 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Sturdy C-clamps hold the tray tightly in place, so safety scores 3 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.
As an Amazon Associate I earn from qualifying purchases.
More picks to compare
AX WABER 38 Inch Keyboard TrayFor wide desks needing a larger slide-out tray with clampsCheck on Amazon
suptek Small Keyboard TrayFor small keyboards and mice on a compact under-desk trayCheck on Amazon
VIVO Premium Keyboard TrayFor standard desks needing padding and height adjustmentCheck on Amazon
SKYZONAL Heavy-Duty TrayFor desks needing a steel slide-out tray with ball bearing slidesCheck on Amazon
ETHU Corner Keyboard TrayFor L-shaped desks needing a corner tray with drawersCheck on Amazon
Compare the picks
| Tray | Office Score | Size | Capacity | Desk Thickness | Warranty | Amazon |
|---|---|---|---|---|---|---|
| VIVO Clamp-on Keyboard Tray | 9.6/10 | 20 x 11 | 11 lbs | Up to 1.25 | 3-year | View on Amazon |
| ERGOMAKER Under Desk Tray | 9.6/10 | 25.6 x 11.8 | 22 lbs | Up to 1.38 | Not stated | View on Amazon |
| suptek Under Desk Tray | 9.5/10 | 25.6 x 11.8 | 11 lbs | Up to 1.57 | Not stated | View on Amazon |
| ETHU Foldable Desk Tray | 9.5/10 | 25.6 x 11.4 | 33 lbs | Not stated | Not stated | View on Amazon |
| AX WABER Under Desk Tray | 9.5/10 | 27.3 x 11 | 11 lbs | Up to 1.9 | Not stated | View on Amazon |
Specifications are manufacturer rated as listed, collected 24 October 2026.
How we scored them
The Office Score weighs performance, build, value, safety and warranty. For a keyboard tray, safety means clamps, pads and edge stops that hold the tray and protect the desk surface. Only one listing states a warranty term: VIVO at 3 years. How we pick explains the weights.
| Product | Office Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| VIVO Clamp-on Keyboard Tray | 9.6 | 28 | 21 | 20 | 3 | 4 |
| ERGOMAKER Under Desk Tray | 9.6 | 30 | 21 | 21 | 4 | 0 |
| suptek Under Desk Tray | 9.5 | 29 | 21 | 20 | 5 | 0 |
| ETHU Foldable Desk Tray | 9.5 | 32 | 22 | 21 | 0 | 0 |
| AX WABER Under Desk Tray | 9.5 | 27 | 20 | 20 | 3 | 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 white keyboard tray
Measure the tray, then the desk
Tray surface and clamp span are different figures, and both need desk space. The VIVO tray measures 20 by 11 inches, with 26 inches including clamps, while the ERGOMAKER and suptek trays measure 25.6 by 11.8 inches, with 29.7 inches and 30 inches including clamps respectively. The AX WABER tray measures 27.3 inches, with 32.5 inches including clamps. See best clamp-on keyboard tray for more clamp-mounted options.
| Tray | Size | Capacity |
|---|---|---|
| VIVO | 20 x 11 | 11 lbs |
| ERGOMAKER | 25.6 x 11.8 | 22 lbs |
| suptek | 25.6 x 11.8 | 11 lbs |
| ETHU | 25.6 x 11.4 | 33 lbs |
| AX WABER | 27.3 x 11 | 11 lbs |
Capacity decides what sits on the tray
Stated capacity separates the trays more than size does. The ETHU tray lists up to 33 lbs, the ERGOMAKER tray lists up to 22 lbs, and the VIVO, suptek and AX WABER trays each list up to 11 lbs. A full-size keyboard and mouse with room for a phone fits the ETHU listing at 25.6 by 11.4 inches, while the VIVO listing describes a small keyboard and mouse on its 20 by 11 inch surface. See best keyboard tray for small desk for more compact options.
Extension and slide
Extension decides how far the typing surface comes toward the user. The VIVO tray extends up to 8.5 inches from the desk edge, the ERGOMAKER tray extends up to 7.9 inches and retracts 11.3 inches under the desk, and the AX WABER tray extends up to 5.7 inches from the desk edge. The suptek listing describes an updated slide system for pulling and pushing, and the ERGOMAKER listing describes a smooth sliding design for pushing the tray back under the desk for storage.
Warranty and the fine print
Only the VIVO listing states a warranty term, a limited 3-year Manufacturer Warranty, while the other listings state no warranty term. Desk thickness limits also differ: VIVO lists up to 1.25 inches, ERGOMAKER up to 1.38 inches, suptek up to 1.57 inches and AX WABER up to 1.9 inches. Both the VIVO and AX WABER listings state incompatibility with desktops that have beveled edges. See best keyboard tray with negative tilt for tilt options.
Setup Notes
- Check the desk thickness limit for the tray chosen: VIVO lists up to 1.25 inches, ERGOMAKER up to 1.38 inches, suptek up to 1.57 inches and AX WABER up to 1.9 inches.
- Check the total length including clamps against the desk, since the clamp span exceeds the tray surface on every clamp tray here.
- Confirm the tray extends clear of the desk edge: extensions listed are 8.5 inches for VIVO, 7.9 inches for ERGOMAKER and 5.7 inches for AX WABER.
- Keep all hardware and instructions from the box, since every listing here states hardware and instructions are included.
- Check for beveled edges before ordering VIVO or AX WABER trays, since both listings state incompatibility with beveled desktops.
Frequently Asked Questions
How do you attach a keyboard tray to a desk?
The trays here use C-clamps or a clamp-on mount that attach to the desk edge, with hardware and instructions included. The ERGOMAKER and suptek listings state no drilling holes in the desk.
Do these trays fit a standing desk?
The listings state desk thickness limits and clamp mounts, not a standing desk type, so check the thickness limit and clamp span against the desk before ordering.
What size keyboard tray fits a full-size keyboard?
The ETHU listing at 25.6 by 11.4 inches fits a full-size keyboard and mouse with room for a phone, and the ERGOMAKER and suptek listings at 25.6 by 11.8 inches hold a keyboard, mouse and small accessories. The VIVO listing at 20 by 11 inches describes a small keyboard and mouse.
Which white keyboard tray states a warranty?
The VIVO listing states a limited 3-year Manufacturer Warranty. The other listings state no warranty term.
How far does a keyboard tray extend from the desk?
The VIVO tray extends up to 8.5 inches, the ERGOMAKER tray extends up to 7.9 inches and retracts 11.3 inches under the desk, and the AX WABER tray extends up to 5.7 inches from the desk edge.
Related guides
See every keyboard tray guide and all computer peripherals guides.
More picks: best height adjustable keyboard tray, best keyboard tray for sit stand desk and best keyboard tray for small desk.




