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Zinus

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

    • Based on 82,282 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, May 7
Order within 10 hours and 11 minutes
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Size: Queen


Style: Box Spring (Original)


Features

  • Steel Interior Frame With Knitted Polyester Cover
  • 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.
  • DURABLY ENGINEERED - Durable steel is used to construct the inside framework of this foundation; Twin size supports a maximum weight capacity of 350 pounds, while all other sizes can support up to 700 pounds
  • HIGH PROFILE DESIGN - A 9 inch height is perfect for shorter mattresses or for those who enjoy their bed higher off 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

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.

Brand: Zinus


Size: Queen


Product Dimensions: 79"L x 59.5"W x 9"Th


Top Style: Tight Top


Cover Material: Polyester


Number of Layers: 2


Fill Material: Polyester


Weight Limit: 700 Pounds


Special Feature: Quick Assembly


Color: Grey


Product Dimensions: 79 x 59.5 x 9 inches


Item Weight: 40.7 pounds


Manufacturer: Zinus - DROPSHIP


Country of Origin: China


Item model number: 139533P


Is Discontinued By Manufacturer: No


Fabric Type: Steel Interior Frame With Knitted Polyester Cover


Refill: Polyester


Care instructions: Wipe with Damp Cloth


Assembly required: Yes


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


Batteries required: No


Included Components: Box Spring, Instruction Sheet


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 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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  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Super easy and sturdy assembly
Size: Twin Style: Box Spring (New Easy Assembly)
Wow! Couldn’t be easier to put together. All parts easily snap together. Took less than 10 minutes including looking at instructions. Very sturdy. Will be easy to disassemble when necessary. Originally ordered Amazon version but the promised shipping date kept getting pushed out. This was actually less expensive. Couldn’t be happier. ... show more
Reviewed in the United States on April 28, 2025 by Perrier
    • Stupid easy to put together
Size: Full Style: Box Spring (New Easy Assembly)
I was really surprised how easy it was to put this together. I was really worried when I saw the box of all the pieces but there are only six screws as most of the pieces are held together with those pop out metal buttons. With a cover on it looks good and seems to work well!
Reviewed in the United States on April 23, 2025 by Shawn Harris
    • Buy it!!!!
Size: Full Style: Box Spring (New Easy Assembly)
I'm impressed with this platform. It was very easy assemble and is sturdy. It also fits in my full bed frame perfectly. As a bonus, it came with a hex socket wrench. Very happy with this purchase!!
Reviewed in the United States on May 1, 2025 by Loretta Mays
    • 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...
    • Great product for a an affordable price
Size: King Style: Box Spring (Original)
Never thought of needing this but this is a great addition to our mattress. Very firm, comfortable as if it is not there. It helped improved our posture and sleep. It does not smell bad. It needs to people to assemble but it is all worth it! Very easy
Reviewed in the United States on April 20, 2025 by JF
    • 5 STARS
Size: Queen Style: Box Spring (New Easy Assembly)
I don’t know why I see so many reviews on saying the assembly is so hard . Literally took me 10 minutes by myself . It’s so simple a toddler can do it . Seems very sturdy and exactly what I was looking for . Will be purchasing again if needed to . Great product .
Reviewed in the United States on April 18, 2025 by Jayla Franco
    • Great Support and Value for the Price
Size: Full Style: Box Spring (New Easy Assembly)
Great Support and Value for the Price I recently purchased a box spring for my full-size bed, and I’m really impressed with it! It was easy to set up, and it provides excellent support for my mattress. The quality is solid, and I appreciate how sturdy and well-built it feels. The design is simple, but it works perfectly with my bed frame. It also arrived quickly and was easy to unpack. Overall, it’s a great value for the price, and I’m sleeping better thanks to the added support. ... show more
Reviewed in the United States on April 1, 2025 by Amazon Customer
    • Easy to assemble.
Size: Full Style: Box Spring (New Easy Assembly)
Very easy to assemble. Took me about 12-15 minutes in total, from taking the pieces out the box, to fully assembled, placed on the bed frame
Reviewed in the United States on April 29, 2025 by Keith Cee

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