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Sosain King Box Spring 7 INCH High Profile Metal Heavy Duty Easy Assembly Sturdy Box Spring Mattress Foundation Extra-Strong Support No Noise Easy to Clean

  • Based on 29 reviews
Condition: New
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$135.99 Why this price?
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Sep 17
Order within 20 hours and 12 minutes
Available payment plans shown during checkout

Size: King


Style Name: 7INCH


Features

  • KING BOX SPRING ONLY:Only 7-inch spring box king. Customers who like to sleep in a higher bed can use it together with the basic bed frame. You can also put it directly on the floor to use
  • STURDY & DURABLE:Heavy-duty steel construction has strong support to keep it stable and guarantee you a comfortable sleep
  • HIGH-PROFILE:7-inch king size box spring.Multiple slats provide stable support
  • EASY ASSEMBLY: Box spring king consists of 4 parts, which can be installed by simply unfolding and locking the central connecting part
  • EASY TO CLEAN: The cover of the king size spring box is made of high quality fiber, making it breathable. and have elastic bands for easy removal and cleaning

Item Weight: ‎48.9 pounds


Product Dimensions: ‎80 x 76 x 7 inches


Date First Available: September 18, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 17

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


  • So far so good.
Size: King Style Name: 7INCH
Was in need of a new box spring that was a metal frame to support a hybrid mattress. This did not assemble perfectly in the middle but with the mattress on top it doesn’t matter. The cover is a nice touch. So far it’s quiet. We have it over wood slats and no moving or squeaking. It fit into a king frame perfectly. Overall good value and relatively easy to put together. ... show more
Reviewed in the United States on November 18, 2023 by miyac

  • Solid alternative to box springs
Size: Queen Style Name: 7INCH
This was easy to assemble (and would be easy to dissassemble.) Our mattress was fairly new and yet sagging in the middle. Replacing our box spring with this rigid metal frame box spring solved the issue. The cover was a nice touch. It fit correctly into our queen sized bed frame.
Reviewed in the United States on November 24, 2023 by jacoka

  • Solidly Built
Size: TWIN Style Name: 7INCH
I'm almost 70 yrs. old and was able to easily put this together. Once in place, it was sturdy and solid. Very pleased.
Reviewed in the United States on November 22, 2023 by Amazon Customer

  • Exactly as expected
Size: TWIN Style Name: 7INCH
Very easy to assemble (took some time but directions were clear), and very sturdy.
Reviewed in the United States on November 18, 2023 by Janet

  • Strong bed foundation.
Size: Queen Style Name: 7INCH
Held my son’s weight he just needs to put the cover in this foundation.
Reviewed in the United States on November 14, 2023 by Linda CARPIO

  • As advertised.
Size: Queen Style Name: 7INCH
Dimensions are true, all the hardware was present and seems to be of good quality.
Reviewed in the United States on October 24, 2023 by Miguel Antonio Benítez

  • Good but deceiving
Size: Full Style Name: 7INCH
I bought the full size. This was easy to put together and good quality BUT it didn’t fit any of my full size beds. Look at the measurements before you buy. It’s not standard and might not fit your full size bed frame. Returned it
Reviewed in the United States on September 27, 2023 by Mimi

  • Easy
Size: Full Style Name: 7INCH
Easy to pout together and I was able to get it upstairs.
Reviewed in the United States on September 18, 2023 by Sandra L. Rose

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