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ZINUS 7 Inch Metal Smart Box Spring / Mattress Foundation / Strong Metal Frame / Easy Assembly, Twin XL

  • Based on 16,863 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, May 23
Order within 15 hours and 47 minutes
Available payment plans shown during checkout

Size: Twin XL


Style Name: 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.Maximum weight recommendation:250 pounds
  • 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
  • THOUGHTFULLY PACKAGED - All parts, tools and instructions pack into one compact box that ships straight to your door
  • Box spring only, a bed frame or platform bed is required to support this foundation and is sold separately
  • Worry-free 5 year limited warranty included

Description

We like to think of a box spring as the backbone for your mattress. The best kind should be flat, level and built to keep your mattress in tiptop shape; and that’s just what the Smart Box Spring does! With its easily assembled, dependable steel structure, you can rest assured that your mattress will be sitting pretty. An included poly jacquard cover blends with the rest of your bedroom, and with a variety of different thicknesses to choose from, you can pick the one you need to customize the height of the bed. All packed in a compact shipping box with everything included, even our 5-year worry free warranty! Now that’s peace of mind you can sleep on.


Size: Twin XL


Product Dimensions: 5"L x 5"W x 7"H


Special Feature: Durable


Color: White


Included Components: Tools, Bed Frame, Instruction Manual


Size: ‎Twin XL


Product Dimensions: ‎5"L x 5"W x 7"H


Special Feature: ‎Durable


Color: ‎White


Included Components: ‎Tools, Bed Frame, Instruction Manual


Brand: ‎Zinus


Furniture Finish: ‎Alloy Steel


Assembly Required: ‎Yes


Item Weight: ‎26 pounds


Country of Origin: ‎China


Item model number: ‎OLB-ABS-7TXL


Is Discontinued By Manufacturer: ‎No


Date First Available: December 29, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 23

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


  • Straightforward assembly, solid once together
Size: Full Style Name: New/upgraded with quick assembly
After putting this boxspring together, I don't think I'll ever purchase a pre-assembled one ever again! Assembly was pretty easy, and the box has everything you need, including an allen wrench and a small ratchet. The instructions were specific about what order to do things in, but I just laid the parts out on my floor in their correct position, and snapped them together as I worked my way around. The powdercoating on the pieces feels high quality, and I did not notice a single sharp edge or corner. The pieces are all light but quite sturdy. I wanted a solid surface for a memory foam bed, and this seems to fit the bill. Something that worried me a little was whether the metal pieces would clank against each other when everything was assembled, but I think it'll be nice and quiet. The only place that metal could touch metal, there's a thin foam pad to prevent noise. At first I thought the cover was slightly undersized, but after getting all of the corners on, the material on the edges curves up over the top just a little on each side. It looks very nice once the mattress is in place. The ease of breaking this down to move it is a huge selling point. I don't plan on moving again in my life, but a large boxspring is a PAIN to move up and down stairs. This breaks down into a small enough package that you could easily move it up a spiral staircase. I would definitely recommend this to anyone who wants a sturdy base for their mattress, and especially to someone who has a tight pathway to their bedroom. ... show more
Reviewed in the United States 🇺🇸 on April 28, 2023 by Sarah

  • Reliable and Sturdy: a Great Foundation!
Size: Queen Style Name: New/upgraded with quick assembly
I recently purchased the Zinus 7 Inch Metal Smart Box Spring for my queen size bed and I must say, I am quite impressed with this product. The assembly was quick and easy - I was able to set it up in just a matter of minutes, without any tools. The metal frame is sturdy and strong, and it provides excellent support for my mattress. I also appreciate the fact that this box spring is only 7 inches high, which makes it the perfect height for my bed. It's not too high, nor too low - just the right height for comfortable sleeping. The design of this box spring is quite smart, too. The metal frame is well-crafted and the corners are reinforced to prevent any wobbling or shaking. The overall build quality of this product is top-notch and I am confident that it will last me for many years to come. The only reason I am not giving this product a perfect 5-star rating is that it does make a slight creaking sound when I move around in bed. However, this is not a major issue and it does not affect the overall performance of the box spring. Overall, I would highly recommend the Zinus 7 Inch Metal Smart Box Spring to anyone who is looking for a reliable and easy-to-assemble mattress foundation. It's a great value for the price, and it has exceeded my expectations in terms of quality and durability. ... show more
Reviewed in the United States 🇺🇸 on April 27, 2023 by The Feedback Fiend

  • Nice for the price
Size: Twin Style Name: Original
I received the two twin box springs ordered and upon opening, reviewed the pictured instructions and pieces and then proceeded to complete assembly of both in one hour with no helping hand. I recommend you have a rubber mallet and quality adjustable wrench available to use in place of the cheap little one supplied to make the job easier. The two went together well and upon completion found them quite sturdy & well made for the price. Glad I purchased! ... show more
Reviewed in the United States 🇺🇸 on June 7, 2023 by Paul T Maltese

  • Easy Assembly and Sturdy
Size: King Style Name: New/upgraded with quick assembly
I assembled this within 20 minutes with the fast assembly version and it was the best investment ever. We need a box spring last minute and this is a great alternative. It is light enough you can move it with one person (if you’re tall enough) but also sturdy enough that you aren’t worried about it breaking. The hardest part of the assembly was figuring out how to put the cover over it (there’s a diagram) but that’s just because a king size bed is almost a square. I wouldn’t buy a different box spring. ... show more
Reviewed in the United States 🇺🇸 on May 21, 2023 by Chaz

  • Great product but bigger than a queen
Size: Queen Style Name: New/upgraded with quick assembly
I got a queen size and i put it up to my other queen frame but this ine is bigger by far. I could of went with a twin from the size of this. Im still using it and have built it up. It's not a bad buy if you want it but if you are trying to put it with other products this maybe not try to size what i am trying to say. ... show more
Reviewed in the United States 🇺🇸 on May 25, 2023 by Beanie Khalifa

  • Easy to put together but . . .
Size: King Style Name: Original
I had to buy their wood slats to put on top of this box spring because this box spring’s metal rods don’t give enough support for our ultra soft organic latex bed. My back was stiff in the morning because our bed isn’t like most that have metal springs inside and are more durable and hard(not as soft and squishy as our bed that is as soft as a giant whale’s blubber) Other than that, it’s easy to put together and took about 30-45 minutes. I like the nice soft cover that goes over it too! And it’s absolutely perfect after the wood slats edition! And now our bed is sky high! ... show more
Reviewed in the United States 🇺🇸 on May 5, 2023 by B

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