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Zinus

Zinus 9 Inch WonderBox(TM) Smart Box Spring Quick Assembly Mattress Foundation, Durable Metal Frame, Queen, Grey

    • Based on 18,027 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Dec 2
Order within 23 hours and 53 minutes
Available payment plans shown during checkout

Size: Queen


Style Name: 9 inch


Design: New Quick Assembly


Features

  • EASY DELIVERY & A CLEANER PLANET Delivered in our earth-friendly WonderBox that is surprisingly small and easy to maneuver through doorways and tight corners.
  • EFFORTLESS ASSEMBLY - Tool-free design snaps together in minutes for a frustration-free setup.
  • CUSTOMIZABLE COMFORT - Choose from two heights to create your perfect sleep oasis 5 inches for a lower profile, or 9 inches for an extra boost.
  • DURABLE STEEL CONSTRUCTION - Provides long-lasting support for your mattress, maximizing comfort and lifespan.
  • WORRY-FREE WARRANTY Sleep soundly with an included 5-year warranty.

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.

Item Weight: ‎35.6 pounds


Product Dimensions: ‎78.7 x 59.5 x 9 inches


Country of Origin: ‎China


Item model number: ‎ZU-FBSSG1OC-09Q


Date First Available: April 28, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Dec 2

Yes, absolutely! You may return this product for a full refund within 100 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Sturdy metal box frame
Size: Twin Style Name: 7 inch Design: Original
I recently ordered this frame for my son’s new bed. I arrived with no damage and well packaged. It does require some assembly with an Allen wrench, some bolts, and washers; however the directions are self explanatory enough and I was able to assemble it within 15 minutes. It also conveniently comes with a torque wrench for the bolts which made it a lot easier versus using the metal allen key. It also comes with extra bolts and washers in case you misplace some. The height was also perfect at the exact 7” I needed. All in all, a great purchase. ... show more
Reviewed in the United States on July 25, 2024 by Brooke C.
    • Well Made, Sturdy, and Easy to Assemble
Size: Twin Style Name: 7 inch Design: Original
So long has it been since I bought a box spring, that when I looked them up on Amazon, I fully expected to be buying a wooden box spring with the wooden slats. I hadn't known that they pretty much all switched over to metal box springs that have to be assembled. There is such a variety of them on Amazon, that I looked at other people's reviews for a good rating, and particularly ones that were reviewed to be easy to assemble. This one had a high rating and was generally rated high for ease of assembly. The price was right, so I sprung for it (no pun intended). It did not disappoint. It arrived quickly, in fact sooner than they had predicted. It took one person less than an hour to assemble with the included tool. It sits solidly on the bedframe, and we are now enjoying its support! ... show more
Reviewed in the United States on May 6, 2024 by Waydemeyer
    • Very sturdy foundation.
Size: King Style Name: 7 inch Design: New Quick Assembly
We purchased this foundation to get our memory foam mattress to a better height inside the bedframe. This certainly did the trick and it is very well constructed, easy assembly and after sleeping on it for a week, it has not made not one sound. Would definitely purchase again.
Reviewed in the United States on August 20, 2024 by Robert A Vaccari
    • Good for guest bed
Size: Full Style Name: 7 inch Design: New Quick Assembly
Easy to assemble except two pieces were missing. I tried to call the company for replacement but they wanted pictures, etc. instead I returned (very heavy) and was sent a new on. Good height, heavy duty, no squeeking and good price.
Reviewed in the United States on May 3, 2024 by Tina N. Erlenbeck
    • Great Boxspring
Size: Queen Style Name: 5 inch Design: New Quick Assembly
Review Image by dmarks dmarks
Review Image by dmarks dmarks
I received this queen boxspring yesterday and I really like it. I put it together alone in about 30 minutes and it was very easy to assemble. It is light weight and supports my mattress perfectly. I am very happy with my purchase and I would recommend this to anyone looking for a boxspring. It was cheaper than what I was planning on purchasing from the store here in town and I didn't have to worry about how I was going to get it home. ... show more
Reviewed in the United States on August 16, 2024 by dmarks dmarks
    • Easy Assembly, Highly Recommend
Size: King Style Name: 7 inch Design: New Quick Assembly
I was impressed enough with this box spring to come and write a review the day after I assembled it. I was concerned because prior to purchasing, Amazon flagged this item as one with frequent returns. Thankfully, I went ahead and ordered it based on the good reviews I had read. It is awesome! I live in a two-story townhouse, and this box spring allowed me to set up a king bed in my bedroom! It was super easy to carry the box up the stairs. The instructions were very clear on what parts went where, and even with my very limited carpentry skills, it was super easy to put together. It took 14 screws total and even came with an Allen wrench and a ratchet for easy assembly. All the different pieces were zip-tied together, so it was easy to tell which pieces were the same & what kind they were. Overall, I would definitely highly recommend this box spring for anyone; I honestly think they could charge more for the quality, but I am thankful that they did not because as a student, I really could not afford other options. 10/10 cannot recommend enough! ... show more
Reviewed in the United States on August 4, 2024 by Madeline Franz
    • Straightforward assembly, solid once together
Size: Full Style Name: 7 inch Design: New 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

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