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The BONTEC Adjustable Desk Extender Tray is a 27.2x9.5 inch clamp-on platform designed to fit most office desks up to 4.7 inches thick. Featuring a 90° foldable design, ergonomic armrest support that reduces strain by up to 90%, and a durable, waterproof MDF and steel construction, it offers a versatile, space-saving solution for enhancing comfort and productivity in professional workspaces.








































| ASIN | B0CK1J4SQW |
| Best Sellers Rank | #141,054 in Office Products ( See Top 100 in Office Products ) #186 in Keyboard Drawers & Keyboard Platforms |
| Brand | BONTEC |
| Color | White |
| Customer Reviews | 4.3 4.3 out of 5 stars (538) |
| Date First Available | September 28, 2023 |
| Item Weight | 6.29 pounds |
| Item model number | EH04-WH |
| Manufacturer | BONTEC |
| Manufacturer Part Number | EH04-WH |
| Material Type | MDF |
| Number of Items | 1 |
| Package Dimensions | 20.91 x 10.79 x 3.62 inches |
| Shape | Rectangular |
| Size | 20"*9.5"(51cm*24cm) |
B**N
Easy install & operation. Everything i expected.
Loving this desk extender so far. I've been using it for a couple weeks to add more room for my computer desk. I use it to hold my keyboard, wrist rest, and Streamdeck. These are my observations: - There are 6 screws you have to put in to secure the shelf to the hardware; 3 on each side. Easy installation. - This wood shelf has these metal studs already built-in where screws go into, which means the screws don't actually dig into the wood and so you don't risk stripping the wood. It's a sign of a quality install. - Once mounted on your desk, the shelf surface is level with the top of the steel bracket. It would've been better if the shelf was level to the desk surface that it's mounted on. The difference is only about 2mm though. This is my only nitpick. - I bought the faux-carbon fiber version, which doesn't look like real carbon fiber but still looks good overall in my opinion. - The hardware feels very solid and the shelf lies perfectly flat when extended. - The latches are very easy to operate and you have to operate both latches at the same time to put the shelf back down. This means that even if one latch fails, it will still hold up. - When you fold the shelf back up, the latches will auto-lock into place which gives off a very satisfying and reassuring click. - I have a very thin solid-steel desk that's only about 2-3mm thick and I was able to mount it easily without having to add many spacers.
L**6
Perfect for my need
Love this desktop extender. Easy to install and provided extra space I needed.
J**.
Great Product Engineered well
An outstanding product easy to install (although I had to make adjustment to where the mechanism attached due to a cornice on my desk that I missed measured), great looks it matches my desk finish, added more functionality to my desk and very reasonably priced. A very fun project that is extremely useful.
J**C
Pretty good, but word of caution
Easy to set up, pretty stable and what I needed. However minor complaint is the rubber ring on the clamp. Under pressure and over time the ring slips off. So your rubber foot will be where it clamped, but the actual metal clamp part will detach and slide away from the foot and come off. So this comes with a periodic check to make sure the clamp isn't about to slip out. Great for resting arms but I wouldn't trust putting anything on it, or leaning on it at all.
G**K
Does the job
It works as intended. I have a little bit of my big ah pc on it so I just need it to only support like an inch of it. Sometimes it'll come undone a little but but i think thats lowkey my fault. I have it on the bottom of my desk near the floor so if youre using it to support a bit of a pc on the top, i maybe wouldnt risk it.
K**G
Need more than 2 inches
Nice sturdy shelf. I did not expect the 2 pieces, but it went together well. Descriptions say it will work with 2” of overhang. I have 2” on the end of my standing desk but it is not even close to enough room for this to work. So… I had to return it. Back to the drawing board.
M**3
Back Pain Gone! Fixed My Posture & Note-Taking Struggles. **Read for tips on installation**
💡Installation tip: The Anker clamp is adjustable. If it doesn't fit under your desk lip at first, just loosen and reposition the screws to lower the anchor arm (anchor clamp)—I’ve included a photo of the area I mean. Once I did that, it fit perfectly. I truly don’t understand why this has a high return rate—this desk extender is awesome once you know how to install it correctly. I mainly use it as a dedicated spot for my notepad, and it has completely changed my work setup for the better. Before this, I had to move my mouse or awkwardly bend over the far side of my desk just to jot something down. That constant twisting and hunching was wrecking my back. Now, I can take notes comfortably without shifting anything—and my posture has noticeably improved. 🎯 A few more reasons I love it: ✅ The surface is durable and waterproof — no peeling, no bubbling, no chipping ✅ No damage to your desk — attaches with sturdy C-clamps, no drilling ✅ Spacious and strong — easily holds my notepad, mouse, or tablet ✅ Folds away neatly when not in use ✅ Huge ergonomic relief — no more back pain from bad angles I actually bought a small side table before this one, and it bubbled up after a single water spill—so frustrating! This desk tray, on the other hand, wipes clean easily and shows no signs of wear, even after everyday use. Bottom line: This is one of the best ergonomic upgrades I’ve made to my desk. If you’re thinking of returning it because the clamp doesn’t fit—don’t! Adjust the screws and give it a real chance. It's affordable, durable, and way more useful than I expected.
A**R
Nice keyboard shelf, free up table space.
This is a great keyboard shelf. I have a folding table (wood not Plastic) that I have my computer on. I needed some more space so I got this and the one for the keyboard. They attach nicely. There is Assembly required. You have to screw the bracket with the thumb screws to the bracket that hold the shelf. And there are options for thin or thick table tops. Mounts to the table nice and strong and level with the table top. Also folds down if you need to get it out of the way.
L**G
Great for extending desk space. Sturdy, good quality and reliable.
N**H
I don't usually write product reviews but felt compelled to do so with this item. It's just been a brilliant extension to my small home office desk - just that extra bit that makes it feel so much more spacious! I can work off a second laptop on it. For the money, I didn't expect too much but I have to say, I'm impressed by the quality. It is sturdy and doesn't feel cheap, practical to flip up and down, and super easy to fit. The seller shipped it super quickly as well - arrived in now time.
K**N
Well packaged item , easy to put together and very sturdy. Looks good and has increased my work area more than I thought it would. Very pleased!
J**G
This is a very sturdy, relatively easy to assemble desk extension product. I highly recommend it for those who want to maintain their posture when seated at a table or desk while typing.
D**G
It didn't seem to fit like I expected with the measurements of 2" allowed but I seem to have made it work! I check how tight it is - every few days I need to tighten a bit more, it's been great. LOVE having it! Very strong brackets, albeit they tighten-up by turning LEFT.
Trustpilot
5 days ago
2 weeks ago