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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

  • Based on 308 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Apr 12
Order within 18 hours and 40 minutes
Available payment plans shown during checkout

Size: King


Style Name: 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: ‎42.9 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: Saturday, Apr 12

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Easy to assemble
Size: Queen Style Name: Modern
It was easy to assemble. I put it together in about 30 minutes. Very sturdy and easy to move. I recommend getting one and replace the old wooden one.
Reviewed in the United States on January 26, 2025 by Lisha Dotson Lisha Dotson

  • I love it!
Size: Queen Style Name: 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. ... show more
Reviewed in the United States on July 20, 2024 by Theresa Jones

  • It works
Size: Queen Style Name: Modern
It works really well with my mattress. It was easy to put together ❤️ a good value for the money.
Reviewed in the United States on February 23, 2025 by PDO

  • So far good product
Size: Queen Style Name: Modern
Item went together well. Instructions were a little difficult to follow & needed some blown up sections so you can better see some of the orientations. Bars seemed much smaller than I expected so hopefully it lives up to the weight rating. We have a 19 year old son with special needs who is very hard on things. He slams his body into the bed and so far no bends. ... show more
Reviewed in the United States on November 8, 2024 by So far so good

  • Great box spring
Size: Queen Style Name: Modern
This will last forever, good quality
Reviewed in the United States on February 15, 2025 by Amazon Customer

  • Does not fit the frame
Size: Queen Style Name: Modern
It was easy to put together but it does not fit the frame. I put the mattress on it and when you sit on the side of the bed it tips up and you fall off. NOT SAFE at all.
Reviewed in the United States on February 6, 2025 by Rosemary Brunson

  • Quality item and easy to assemble.
Size: Queen Style Name: Modern
I have never had anything other than a wooden box spring but this is great. Easy to get up the stairs by myself, easy to assemble, and so far seems to be good quality.
Reviewed in the United States on December 27, 2024 by Marcy DeGraw

  • Sturdy
Size: King Style Name: Modern
Super sturdy every time we get an old school box spring the wood pieces always break! But this frame was super easy to put together. It fit perfectly on my medal bed frame. It was good on price. Seems to be holding up pretty well for our big bodies.
Reviewed in the United States on September 5, 2024 by Samantha

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