King Box Spring, 9 Inch Metal King Size Box Spring Only, Heavy Duty Metal Frame Mattress Foundation Support for 3000lbs, Easy Assembly, Noise Free, Non Slip
Condition: New
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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Thursday, Nov 27
Size: King
Style: Modern
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 king 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 king 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 king 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.
Size: King
Product Dimensions: 42"L x 8"W x 9"H
Special Feature: Box Spring Cover Included, Noise Free, Easy Assemble, Squeak Resistant
Color: Black
Finish Type: metal
Size: King
Product Dimensions: 42"L x 8"W x 9"H
Special Feature: Box Spring Cover Included, Noise Free, Easy Assemble, Squeak Resistant
Color: Black
Finish Type: metal
Included Components: Box Spring, Box Spring Cover, Toolkit
Compatible With Mattress Size: King
Brand: OSASET
Assembly Required: Yes
Ground To Item Distance: 9 Inches
Manufacturer: OSASET
Form Factor: Rectangular
Item Weight: 39 pounds
Country of Origin: China
Item model number: king 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, Nov 27
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
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Top Amazon Reviews
Size: Queen
Style: Modern
This product was a bit confusing when I ordered it as I couldn't determine if it came with legs or not thus not needing a frame. When the box arrived, I was doubly doubtful since the box was so small and relatively light. Turns out, this box springs (why do they call them that not having a bloody spring and all?) is pretty amazing. First, it is an amazing little bit of structural engineering consisting of several pieces which look weird and flimsy, but when put together form an incredibly strong and rigid unit. Second, the instructions were pretty good (could be better...much better), but good enough if you take your time and pay attention. For the cost, this is a nice product and I would buy it again. Beyond that, it is just a box springs folks so that is as fancy as it gets.
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Reviewed in the United States on June 22, 2025 by John W.
Size: Queen
Style: Modern
Very easy to assemble. Strong and sturdy. Comfortable!
Reviewed in the United States on June 21, 2025 by Felica
Size: Queen
Style: Modern
So we got this to replace an old wooden box spring.. like a 10+ years old box spring, that creeked everytime you moved in the bed. Was definetly not ideal for when you have to get up and your partner is still asleep. NOW it doesnt make a single bit of noise! And it makes our mattress feel soooooo much better as far as support goes. A plus for me, because i got the 9 inch ( I think! Whichever was biggest.), it gave height to the bed which I personally enjoy. Putting it together was SUPER easy and it is really sturdy. Took about 30-45 minutes for one person to do alone. The only problem that I had with the product is that one of the bars was bent, but honestly it was an easy fix and didn't hinder the products ability at all. I am very happy with this purchase so far.
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Reviewed in the United States on July 20, 2024 by Theresa Jones
Size: Queen
Style: Modern
Easy to put together but time consuming. Works well.
Reviewed in the United States on April 7, 2025 by Robbins Potter
Size: Twin
Style: Modern
I was thinking this would be a good buy after reading reviews and seeing the star ratings. Less than two months in and the middle slates are bending. My teenage son is half of the maximum weight too. Garbage.
Reviewed in the United States on July 24, 2025 by Aramsey
Size: Queen
Style: Modern
This 9-inch queen box spring exceeded my expectations. It was very easy to assemble, and the instructions were clear. Once set up, it provided amazing support and made my mattress feel so much more comfortable compared to when I didn’t have a box spring. It’s sturdy, quiet, and makes a noticeable difference in sleep quality. Highly recommend.
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Reviewed in the United States on May 26, 2025 by NIceNuzy
Came with all the pieces, instructions fairly simple. Takes two people, well is helpful. Constructs just like it is described and the end result is a nice product. Needed box springs for antique bed frame and it did the job perfectly!
Reviewed in the United States on July 14, 2025 by slone taliaferro slone taliaferro
Size: Queen
Style: Modern
This was amazing, at first I was a little worried that it would not fit on the queen size bed and it would not be stable.. but it work better then the actual sold at the store. Easy to assembly , light weight Material is durable
Reviewed in the United States on May 21, 2025 by Liz