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ZINUS 5 Inch Metal Smart Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, Twin XL

  • Based on 21,822 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Sep 7
Order within 20 hours and 59 minutes
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Size: Twin XL


Style: Original


Features

  • THE LAST BOX SPRING YOULL EVER NEED - Unlike a traditional box spring, the Smart box spring is made of solid steel that comes together in no time and is backed by our ZINUS Peace of Mind 5 year warranty
  • Product Dimensions :79.0 x 38.0 x 5.0 inches
  • DURABLY ENGINEERED - Durable steel is used to construct the inside framework of this foundation; twin size supports a maximum weight capacity of 350 lbs, while all other sizes can support up to 700 lbs.LOW PROFILE DESIGN - A 5 inch height is perfect for taller mattresses or for those who enjoy their bed lower to the floor
  • THOUGHTFULLY PACKAGED - All parts, tools and instructions are packed into one compact box that ships straight to your door
  • Worry-free 5 year limited warranty included; box spring only, a bed frame or platform bed is required to support this foundation and is sold separately

Size: Twin XL


Product Dimensions: 79"L x 38"W x 5"H


Special Feature: Durable


Color: The Last Box Spring You’ll Ever Need - Unlike a Traditional Box Spring, the Smart Box Spring is Made of Solid Steel That Comes Together in No Time and is Backed By Our Zinus “peace of Mind” 5 Year Warranty See more


Finish Type: Steel


Size: ‎Twin XL


Product Dimensions: ‎79"L x 38"W x 5"H


Special Feature: ‎Durable


Color: ‎The Last Box Spring You’ll Ever Need - Unlike a Traditional Box Spring, the Smart Box Spring is Made of Solid Steel That Comes Together in No Time and is Backed By Our Zinus “peace of Mind” 5 Year Warranty


Finish Type: ‎Steel


Included Components: ‎Tools, Bed Frame, Instruction Manual


Brand: ‎Zinus


Furniture Finish: ‎Alloy Steel


Product Care Instructions: ‎Wipe with Dry Cloth


Assembly Required: ‎Yes


Item Weight: ‎25.2 pounds


Country of Origin: ‎China


Item model number: ‎OLB-ABS-5TXL


Is Discontinued By Manufacturer: ‎No


Date First Available: January 15, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 7

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


  • Ez to put together and or move by yourself
Size: Queen Style: New/upgraded with quick assembly
Does the job and great that you can easily move and transport it , hauling a queen size box spring up or down the steps is a daunting task at best, the fact that this can be built and broken down in the bedroom is a major win. It’s easy to put together and very sturdy, don’t think twice about getting this as it fits the bill. ... show more
Reviewed in the United States on October 18, 2023 by MXP

  • Quick and Easy!
Size: Queen Style: New/upgraded with quick assembly
I needed a box spring for my mattress since I got a new bed frame, and this one had great reviews and I see why! The step-by-step instructions were super easy to follow (if you get the easy to assemble one) it took me about 40 minutes to put together and it works great! Highly recommend for the price! ... show more
Reviewed in the United States on October 15, 2023 by Amazon Customer

  • Great
Size: Queen Style: New/upgraded with quick assembly
Bought this for a queen bed for my high school son. Placed on top of slats as my frame was too wide and the box springs kept falling through. Works great and is sturdy. Was simple to put this together and the cover was easy to put on. Well buy more of these in the future to replace older box springs. ... show more
Reviewed in the United States on October 13, 2023 by Ginger Mills

  • Simple and sturdy
Size: King Style: Original
It’s easy enough to put together, just a little tedious and the slats are a tight fit. But it feels very sturdy once assembled and works fine for my partner and I who have literally jumped on our mattress and weigh a combined 350lbs. It’s sturdy and good quality, you do need to be mindful it’s not a solid top so you can’t set things on it or stand on it without the mattress on top Weird thing is I bought this twice, about a month apart. One came with a full zippered cover that covered every side, top, and bottom. But the second one has a draw string cover that didn’t cover the bottom. Just seems like a weird inconsistency and I preferred the full zipper cover ... show more
Reviewed in the United States on September 3, 2023 by nick schoeppner

  • Worked great for a last minute purchase!
Size: Twin Style: Original
When we moved into our new house, our daughter decided last minute that she preferred a twin sized bed over her previous full size bed so we had to find a solution pretty quickly. With a million other purchases for a new home on our minds, we honestly didn't put much thought into the box spring going on her bed. She's 12 and very hard on things so while we would normally spend more money on something sturdy for her, we suspect a twin bed is just a temporary choice for her so we didn't want to invest. That being said, this mattress has served us well! If you're purchasing for a teenager that's hard on everything, it may not be the best choice for long term but for a little kid (where you know it's temporary) or a guest bed that isn't used often, it would be a great option! Was super easy to move (even without my husband home) and I was able to get it set up by myself. I'm average sized and the only work out I do is lifting my 9 month old, chasing my 3 year old and threatening my teenagers. I offered to mow the lawn but my husband thinks "If I could figure out how to start the mower..." means "GO MOW THE LAWN." If you're needing a mattress for a little kid or to fill a space, you can't go wrong here! ... show more
Reviewed in the United States on July 26, 2023 by Cate Watkins

  • Queen
Size: Queen Style: Original
I’m unsure how it look me to put it together.. the cover is like putting on a bedsheet.
Reviewed in the United States on October 17, 2023 by Foever.j Foever.j

  • Better than I thought initially
Size: Twin Style: Original
I had my concerns about putting this together ourselves, but it wasn't nearly so difficult as I thought. Also, while there were parts that were difficult due to metal shavings bent up, my husband was able to get it together. Just might have to use other tools to bend or pry it into the right way. Holds up pretty well. ... show more
Reviewed in the United States on October 3, 2023 by Emily

  • Fast Delivery, easy set up
Size: Full Style: New/upgraded with quick assembly
I recently bought a boxed mattress and realized that I needed a box spring to go underneath it, I ordered this metal box to go under the mattress. It was very simple to put together. It is very supportive. It comes with instructions, and all the tools to put together.
Reviewed in the United States on October 6, 2023 by Michelle Roy-Davila

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