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King Size Box Spring, 9 Inch Heavy Duty Bed Base with Fabric Cover, Noise Free Mattress Foundation for Bed, Easy Assembly, Black

  • Based on 37 reviews
Condition: New
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$129.99 Why this price?
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon

Arrives Friday, Nov 15
Order within 18 hours and 32 minutes
Available payment plans shown during checkout

Size: King


Display Height: 9.0 Inches


Features

  • Time- tested Structure: DiaOutro king size box spring are made of reinforced metal slats, time-tested and sturdy. It's suitable for heavy mattresses.
  • Easy Assembly: Box spring for king bed has a simple and clean design as a compact package. All the tools you need are effectively packaged in the box. Installation can be done quickly even by yourself, just a few steps to complete.
  • Fabric Cover Included: This box spring king size includes Fabric Cover. Dustproof and easy to clean. Simple appearance goes well with other bedroom furniture and fits perfectly in any bedroom.
  • Noise Free: Integrated structure makes the king metal box Spring bed base noise free, non shake and provides you with a great sleep.
  • king Box springs dimensions: 79.6" L x 75.6"W x 9" H.

Item Weight: ‎46.1 pounds


Product Dimensions: ‎79.6 x 75.6 x 9 inches


Item model number: ‎BS9I


Assembled Height: ‎9 inches


Assembled Width: ‎75.6 inches


Assembled Length: ‎79.6 inches


Date First Available: February 18, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Nov 15

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Perfect!
Size: Twin Display Height: 7.0 Inches
Easy to build. Done quickly by family member. Extremely sturdy to hold. Perfect fit! Price phenomenal. Thank you.
Reviewed in the United States on May 9, 2024 by BETTYBOOPDOLLY777

  • Steel Box Spring
Size: Full Display Height: 9.0 Inches
This box spring is great! Easy to build. Very strong and can handle weight. And noise free. It’s a really good deal.
Reviewed in the United States on March 25, 2024 by Kay

  • Solid Box Spring
Size: Queen Display Height: 9.0 Inches
It's a good box spring but was a pain to put together since the instructions were a little vague
Reviewed in the United States on April 11, 2024 by James Pittman

  • Very sturdy
Size: King Display Height: 4.0 Inches
I actually like this better than the ones made that used wood for the frame. Very sturdy and easy to put together.
Reviewed in the United States on April 21, 2024 by Christina Davison

  • Sturdy and comfortable
Size: Twin Display Height: 9.0 Inches
Great replacement to a bunkie board for my son’s bed. Gives excellent support, very sturdy. Easy to assemble.
Reviewed in the United States on April 5, 2024 by Terri

  • Excellent box spring
Size: Full Display Height: 9.0 Inches
No squeaky noise, excellent boxspring, great support
Reviewed in the United States on April 27, 2024 by Cupcakedeb

  • Doesn't Fit my Frame
Size: Full Display Height: 7.0 Inches
Nice unit. Very sturdy. Easy to assemble but time consuming. I would prefer a full cover across the bottom but this is sufficient. The problem is it doesn't fit my frame. I have an antique sleigh bed. The old standard size box spring fit fine. This one is about 2 inches too long and the only solution is to cut it down. I am very disappointed. Taking it apart and returning it is out of the question. It's too late for that. So the lesson here is to measure everything and make no assumptions. ... show more
Reviewed in the United States on April 17, 2024 by Karen C Karen C

  • Accurate image
Size: Twin Display Height: 9.0 Inches
Product was easy to assemble and gave my day bed the additional height I was seeking.
Reviewed in the United States on March 27, 2024 by Amazon Customer

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