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OSASET Full Box Spring, 9 Inch Metal Full Size Box Spring Only, Heavy Duty Metal Frame Mattress Foundation Support for 3000lbs, Easy Assembly, Noise Free, Non Slip

  • Based on 1,525 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Jul 9
Order within 18 hours and 23 minutes
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Color: 9 Inch


Size: Full


Features

  • SLEEK PROFILEThe Box Spring's 9" height offers optimal elevation, providing the perfect balance of comfort and convenience. For those who prefer a higher bed, it can be used in conjunction with a basic bed frame. Alternatively, it can be placed directly on the floor for use.
  • NOISELESS AND COMFORTABLE Experience peaceful and undisturbed sleep with the silent design of this box spring. No matter how you move or turn over, it remains quiet and noise-free, ensuring a comfortable sleeping environment. Sleep soundly, wake up refreshed!
  • HEAVY DUTY METAL The full box spring is made of the quality grade of steel. Whether you're flying solo or sharing this bed frame with a partner, your box spring can support up to 3000 lbs, ensuring your bed stays as steady as a rock for years to use
  • EASY TO CLEAN The cover of the full size box spring is crafted from high-quality fiber, ensuring breathability. It features elastic bands for easy removal and cleaning, helping you maintain a fresh and hygienic sleep environment.
  • EASY TO ASSEMBLEMetal box spring full size updated with simpler assembly methods and includes all necessary tools. With integrated construction, it can be assembled in minutes. Were Here for You: Premium After-Sales Service You Can Trust.

Item Weight: ‎27.2 pounds


Product Dimensions: ‎74.6 x 53.5 x 9 inches


Item model number: ‎Full Box Spring


Date First Available: January 30, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • ⭐️⭐️⭐️⭐️⭐️ Solid, Heavy-Duty Foundation That Just Gets the Job Done
Color: 9 Inch Size: King
We needed a replacement foundation that didn’t creak, sag, or feel like it was one bad night away from collapse and this OSASET frame has been exactly that: simple, sturdy, and forgettable (in the best way). First impression: It comes in pieces, but assembly is pretty straightforward. Once it’s together, it feels much more like a rigid steel platform than a traditional “box spring,” which is honestly what most modern setups are anyway. Metal box spring foundations like this are designed to replace traditional bulky wooden box springs with a more durable steel frame that distributes weight evenly and reduces long-term sagging risk. What stood out: * Very solid steel construction—no wobble once assembled * 9-inch height gives good bed clearance * Fabric cover keeps it looking clean instead of industrial Real-life use: Once the mattress was on, it immediately felt stable. No squeaks when moving, no shifting, and no “did that just creak or am I imagining things?” moments in the middle of the night. It just disappears under the mattress and does its job. Pros: * Strong, stable support for heavier mattresses * Quiet, no squeaks or flexing * Easy to assemble compared to traditional foundations Cons: * Assembly takes a little time (not hard, just not instant) * Not as “premium looking” as wood-frame foundations if exposed Bottom line: If you want a reliable, no-nonsense king-size foundation that prioritizes strength over aesthetics, this is a great 4-star workhorse. It won’t impress you every day but that’s kind of the point. 🛏️ ... show more
Reviewed in the United States on May 3, 2026 by David Hassen

  • It’s great. Had concerns at first not anymore.
Color: 7 Inch Size: Queen
For the price point is really isn’t that bad of quality. It’s pretty sturdy and was easy to put together. Size is perfect as well as the height. Basically it’s as exactly like the description. I did have one issue where there were two tiny dents but upon sleeping on it there have been no structural issues as of right now. Nor has the box spring bent further in those two areas. ... show more
Reviewed in the United States on April 15, 2026 by Kaileena Ledford

  • Good value, fits as advertised.
Color: 7 Inch Size: Queen
It isn't exactly a "spring", it's a frame/box used as a base for a mattress. It does require assembly, but it's fairly simple. Once together it forms a solid foundation for your mattress. Has an additional support 'foot' in the center for extra strength. Would purchase again.
Reviewed in the United States on April 24, 2026 by Gene M

  • Sturdy and comfortable!
Color: 7 Inch Size: Queen
I was so skeptical of getting this because I’m use to the traditional ones at the furniture store but it turned out perfect! It was easy to assemble and it’s been very stable and sturdy. I didn’t know what to expect honestly I thought it would make my mattress uncomfortable and it didn’t! Also It’s a true value because at this price it’s a no brainer plus you don’t have to worry about it breaking if someone jumps on your bed like what happened to my last one lol ... show more
Reviewed in the United States on May 23, 2026 by Afreeka P.

  • Perfect and easy to put together
Color: 3 Inch Size: Full
My uncle had went out and bought a new mattress , which is one of those pillow , top extra big ones where you only need this type of box spring. This isn't really like a box spring.It's more like a support. It's perfect and exactly what we needed. Buying one at the mattress store was almost twice this amount of money and then they were gonna charge us to deliver it which was close to the same price they were charging us for it In addition. They had originally sold him a normal box spring with the mattress knowing that it would make it too high. This product fixed everything. It was very easy to put together and I like the cover that comes with it that goes over it. ... show more
Reviewed in the United States on April 23, 2026 by Nunya Bidniss

  • Serves its purpose.
Color: 9 Inch Size: Queen
Quick and easy to put together. Lots of pieces but goes together quickly and works well for the price. No issue with it being metal.
Reviewed in the United States on June 14, 2026 by Kimberly’s Click & Tells

  • Simple to put together
Color: 7 Inch Size: Queen
This box spring is the perfect size for our queen bed frame, exactly what we needed! Our old frame was due for a replacement, so we turned to Amazon to find a reliable option. This box spring fit flawlessly on our queen-size bed and frame, and I couldn’t be happier with the purchase. The instructions were very easy to follow, making assembly a breeze. I was able to put it together entirely on my own, and the process was straightforward from start to finish. The materials are sturdy and well-built—constructed from heavy-duty metal, it feels durable and long-lasting. I appreciate the solid support it provides for our mattress, ensuring a stable and comfortable sleep. For the price, this box spring exceeded my expectations. If you're looking for an affordable, well-made, and easy-to-assemble option for your queen-size bed, this is definitely worth considering. I’m very satisfied and would recommend it to anyone needing a replacement. ... show more
Reviewed in the United States on April 25, 2025 by Senir

  • Box springs
Color: 9 Inch Size: Queen
This is a pretty decent box springs. Came in a box small enough for an older lady to manage. You need a large space to assemble, and I used my on set of Allen wrenches to out together, as a handle makes it much easier. Took me about an hour to out together. Directions were very good, easy to assemble and works perfect on bed. Would buy again if needed. ... show more
Reviewed in the United States on January 7, 2026 by J. Howard

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