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ZINUS 9 Inch Metal Smart Box Spring with Quick Assembly, Mattress Foundation, Strong Metal Frame, Easy Assembly, Queen

  • Based on 82,466 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Aug 6
Order within 3 hours and 50 minutes
Available payment plans shown during checkout

Size: Queen


Style: Box Spring (New Easy Assembly)


Features

  • Steel Interior Frame With Poly Jacquard
  • STRONG, DEPENDABLE, AND READY IN NO TIME - As if its ultra-durable steel structure and convenient packaging werent impressive enough, our original Smart BoxSpring has been given a quick-assembly upgrade
  • DURABLY ENGINEERED - Durable steel is used to construct the inside framework of this foundation; Twin/Twin XL sizes support a maximum weight capacity of 350 lbs, while all other sizes can support up to 700 lbs
  • EASIER THAN EVER ASSEMBLY - With fewer bolts and tool-free locking brackets for intuitive setup, assembly takes only minutes to complete
  • VERSATILE FIT - Compatible with all Zinus mattresses and bed frames; please confirm dimensions before using with non-Zinus products
  • WARRANTY INCLUDED - Included a 5-year limited warranty for the box spring only; a bed frame is required to support this foundation and is sold separately

Description

As the backbone for solid mattress support, a box spring that falls short can make or break your night’s sleep. We developed the Smart BoxSpring® with unbeatable durability and rock-solid stability to keep your mattress in shape for years to come. And our latest quick assembly version gives you total confidence when it comes to setup, requiring fewer bolts and ingeniously designed with easy to use, tool-free brackets. With our simple, step-by-step instructions on hand, you’ll have this foundation built and ready to use within minutes. Built with a strong and durable steel frame and a versatile poly jacquard cover that slips right on, the Smart BoxSpring® is the picture of dependability for any mattress. 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: Queen


Color: Grey


Included Components: Steel Frame, Cover


Brand: ZINUS


Product Care Instructions: Wipe with Damp Cloth


Size: Queen


Color: Grey


Included Components: Steel Frame, Cover


Brand: ZINUS


Product Care Instructions: Wipe with Damp Cloth


Assembly Required: Yes


Manufacturer: Zinus


UPC: 841550325416


Global Trade Identification Number: 16


Product Dimensions: 78.7 x 59.5 x 9 inches


Item Weight: 38.7 pounds


Country of Origin: China


Item model number: ZU-ABS-9QS


Fabric Type: Steel Interior Frame With Poly Jacquard


Warranty Description: Worry-free 5 year limited warranty included.


Batteries required: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 6

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


  • Great price and sturdy
Size: King Style: Box Spring (Original)
We checked out some box springs to replace our busted wooden ones. The price has definitely gone up substantially on them. We decided to try out the metal box springs hoping for longer lasting and more sturdiness. The product says is can hold up to 750 pounds. My husband and teen son assembled the boxspring together. It came with all the necessary tools. Would say the only thing we really had a problem with is that the middle shafts are hollow and we had some bugs in ours so we beat them down into the bathtub and made sure that they weren’t in any more of the metal. I can’t really see how a warehouse could have this 100% under control to not have this happen so we do not blame the company for anything. Just FYI for you to check before you assemble it. My husband and son were having a bit of trouble getting the cover on until I came up and helped them out. Luckily there’s a little flap that says top so you know exactly which way to put it on. It was easy putting it on after that. We’ve had it for about two months now and it works great. Great product for the price in a time of outrageous bedding prices. ... show more
Reviewed in the United States on June 15, 2025 by Dee Ann Mokhtari

  • Great quality, packaging and everything included for assembly
Size: King Style: Box Spring (Original)
Loved the fact that it arrived in a compact box making it very manageable to carry through the house and into the bedroom as I have a very small and constricted floor plan. Upon opening the box it seemed a bit overwhelming but once I looked at the instructions and the diagram of the labeling of the pieces I was very impressed with how easy it was to lay out and put together. All the hardware fit smoothly and was easy to put together using only the tools that were supplied. That in itself was a touch of class, to be provided those items and not have to find and size up my own tools. The quality of the hardware as well as the packaging was well thought out and I appreciated the extra nuts and bolts. I actually used the extra nuts to double nut the two long bolts that secured the middle cross members together in the center of the box to ensure they don't work their way loose over time. The nuts and bolts looked to be well made and the shouldered and serated locking surfaces of the nuts weren't lost on me. That was a great selection of fasteners. The bolts were made very well and the heads did not ring out or become deformed from being tightened and kept their integrity and shape so as to be removed for disassembley in the future if needed. All the frame work pieces had a very nice finish to them appearing to be powder coated. The final addition of the frame cover was an added item that enhanced the overall quality and appearance of the total package once it was fully assembled. Total assembly time was no more than an hour by myself and being put together on and inside an existing raised oak bedframe with large headboards and side rails. Very pleased with this excellent product and would most definitely buy again and recommend to others looking for a similar item to fit their needs and lifestyle. ... show more
Reviewed in the United States on June 8, 2025 by Dean W. Edwards Jr.

  • If you put it on a bed frame make sure you have at least 10 support beams
Size: Queen Style: Box Spring (New Easy Assembly)
This was a very easy assembly! All you need are the tools that literally come with the package. It is very sturdy on the bed frame that I already have. Only thing I would say is if you don’t have 10+ beams on your original frame from other reviews I hear it won’t be stable, luckily mine does and it fits like a charm. Wish I would have bought it sooner ❤️ ... show more
Reviewed in the United States on July 14, 2025 by Jannie Jannie

  • Pleasantly surprised....so far...Update ....30 JAN 2021...
Size: Full Style: Box Spring (Original)
First of all, I was pleasantly surprised with the quality of this box spring. Only one night sleeping on it but no squeaks so far. I should add that I will update this review if any problem occurs. Before I ordered this, I read through all of the questions and answers which took a couple of hours. So glad that I did as several customers mentioned the cover and problems putting it on. It is a very tight fit but if I can do it at my age, anyone can do it. A suggestion to the manufacturer would be to add perhaps 1/4 to 1/2 inch more fabric and it would not be so difficult to place over the box spring. I also watched the video twice before I ordered this and that was easy to follow. Four of the pieces were labeled with a yellow sticky that said 'up' which was most useful. My other suggestion would be to label all of the pieces with 'A, B, C, D etc. which would have decreased my assembly time by at least one hour. I did go back and watch the video again while I was assembling. Total time for me to get the pieces in the right order, double-check the placement, tightening of the hardware, etc, was 4 hours. After I got the box spring assembled, I went around each piece and put pressure on each one, to make sure things were as tight as I could get them. I am visually impaired so perhaps that contributed to the amount of time it took me to assemble it. At my age, I am thinking that perhaps I should have had someone make sure I had everything tightened well. If anything loosens up over time, will have someone help tighten it for me. All in all, so far and so good. The mattress I have on top is really heavy and as I stated previously, the box spring has no squeaks and appears to be most durable. In other words, no movement of the box spring. Update to follow if anything should occur. Edit on 26 MAR 2019... Have been using this for 17 months now... No squeaks, absolutely zero problems! Still as satisfied as the day i first reviewed this in October of 2017. And, my recommendation is still that I highly recommend this box spring. Update on 10 OCT 2019.... The 2 year anniversary of this box spring and once again there are no squeaks and zero problems. Still highly recommend this box spring~ Update as of 30 JAN 2021...Absolutely still in perfect condition. Was going to increase the star rating to 5 but don't dare to change it. Truly outstanding and most highly recommend this item for everyone that wants a sturdy and long-lasting box spring. Could not be any more pleased with a product... Most highly recommend... ... show more
Reviewed in the United States on October 14, 2017 by Serenity...

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