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Zinus

ZINUS 5 Inch WonderBox(TM) Smart Box Spring, Quick Assembly Mattress Foundation, Durable Metal Frame, Queen, Grey

    • Based on 18,411 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Apr 29
Order within 19 hours and 48 minutes
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Size: Queen


Style Name: 5 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. Box spring only, a bed frame or platform bed 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


Product Dimensions: 78.7"L x 59.5"W x 5"H


Special Feature: Squeak Resistant, Easy assembly


Color: Grey


Finish Type: Painted


Size: ‎Queen


Product Dimensions: ‎78.7"L x 59.5"W x 5"H


Special Feature: ‎Squeak Resistant, Easy assembly


Color: ‎Grey


Finish Type: ‎Painted


Included Components: ‎Box Spring, Instruction Sheet


Compatible With Mattress Size: ‎Queen


Brand: ‎Zinus


Furniture Finish: ‎Gray


Assembly Required: ‎Yes


Manufacturer: ‎Zinus


UPC: ‎841550372670


Form Factor: ‎Frame


Global Trade Identification Number: ‎70


Item Weight: ‎30.8 pounds


Country of Origin: ‎China


Item model number: ‎ZU-FBSSG1OC-05Q


Date First Available: April 28, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 29

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.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Best Purchase Ever
Size: Queen Style Name: 5 inch Design: New Quick Assembly
I never write product reviews, but this was such an awesome purchase. This is the BEST box spring I have ever owned. If you’re on the fence about buying this product, or you’re trying to decide between options, here’s a number of reasons to go with this one. 1. Noise Level: NONE. Completely silent. This was my #1 reason for wanting a new box spring in the first place, and it does not disappoint. Our previous box spring (the traditional wood/spring kind) had become squeaky over the years, and kept waking up our 5 month old baby. This new box spring hasn’t made one tiny noise since day one - our baby has been sleeping through the night. Relief is an understatement. 2. Sturdiness: I have never felt so supported by my bed. It feels even better than when our previous box spring was brand new, so I know it’s not just because it’s new. I have chronic shoulder pain, and while a new box spring obviously isn’t a cure, I have been waking up significantly less sore for the first time in years. My husband doesn’t have the same pain issues, but he agrees that our bed feels much more sturdy and comfortable, because our bodies are better supported. 3. Assembly: So easy. I am not in my greatest shape (I did just have a baby), but I was able to put it together without my husband’s help. The box comes with some screws and an Alan key, and that’s honestly all that’s needed. The directions are pretty easy to follow. I will say that the “Up” stickers were placed on the parts in a way that was a little confusing at times, but if you pay close attention to the pictures in the instructions, you’ll be fine. It took me less than an hour. I cannot recommend this box spring enough. Do yourselves a favor and purchase this. You can thank me later. :) ... show more
Reviewed in the United States on February 11, 2025 by cnelson1102
    • 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
    • Light and Easy to Assemble 9” Box Spring
Size: Full Style Name: 9 inch Design: New Quick Assembly
Review Image by Maxibillion Maxibillion
Review Image by Maxibillion Maxibillion
Review Image by Maxibillion Maxibillion
Review Image by Maxibillion Maxibillion
Review Image by Maxibillion Maxibillion
The product was packaged well and all pieces/hardware were present. Items were clearly labeled with “UP” stickers to minimize confusion but could benefit from identification stickers (A, B, C, etc) to make it fool proof. The instruction illustrations were clear, making part identification simple (again, letter identification stickers would take it over the top) and were easy to follow. Assembly from start to finish took 22 minutes. It’s a simple unfold and snap in assembly with 6 bolts bringing it all together in the middle, 2 plastic caps to cover the tops of the outside center joints, and the fabric covering once it’s put together. Frame seemed pretty solid once assembled and is extremely light - purchased Full size 9” box spring. Will update if anything changes but overall, I am satisfied with the product. ... show more
Reviewed in the United States on March 7, 2025 by Maxibillion Maxibillion
    • First Impressions
Size: Full Style Name: 9 inch Design: New Quick Assembly
The Positives: -It was pretty simple to assemble (or would have been see cons). Just 6 screws. Straightforward instructions. Minimal parts to connect. -It feels solid with two adults and a child in it. -Not Noisy so far. Silent in fact. I was concerned about it being noisy so I added electrical tape at all metal to metal contact points. Particularly the end of the cross braces. This made things fit tighter and there shouldn't be any metal rubbing together now. Can't say this made the difference but it is quiet. -Price -The cover was easy to fit. It's basically just a fitted bed sheet. Cons: -No surprise, the metal is the typical cheap Chinese pot metal. -The machining for one of 6 screw holes was missing most of it's threads. This made it impossible to assemble using the screws provided. Thankfully I had a box of nuts and bolts and was able to complete the assembly without the screw. -Two of the cross braces didn't have the plastic grommet in the end of them. This would have meant extra metal to metal contact. I remedied this by fashioning my own grommet out of furniture foot pads. I shouldn't have needed to do this but I'm sure it will work better now anyway. Tip: Use electrical tape at all metal to metal contact points to avoid noisy metal to metal friction. This was at the end of cross braces and then the center contact point where 4 screws are connected. Summary: It was a very cheap solution that seems to solve the problem. If you don't have a little Macgyver ability you might want to avoid this. The quality of the material and machining matches the price. Ease of assembly with simple instructions is a plus. Will update if the thing falls apart. ... show more
Reviewed in the United States on December 9, 2024 by Beau

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