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

  • Based on 18,258 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Apr 11
Order within 23 hours and 33 minutes
Available payment plans shown during checkout

Size: Full


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. 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: Full


Color: Grey


Brand: Zinus


Included Components: Box Spring, Instruction Sheet


Assembly Required: Yes


Size: ‎Full


Color: ‎Grey


Brand: ‎Zinus


Included Components: ‎Box Spring, Instruction Sheet


Assembly Required: ‎Yes


Manufacturer: ‎Zinus


Global Trade Identification Number: ‎00


UPC: ‎841550372700


Item Weight: ‎32.7 pounds


Product Dimensions: ‎73.8 x 53 x 9 inches


Country of Origin: ‎China


Item model number: ‎ZU-FBSSG1OC-09F


Assembled Seat Height: ‎9 Inches


Date First Available: April 28, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Apr 11

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


  • Very nice!
Size: Twin Style Name: 7 inch Design: Original
I was actually very pleasantly surprised with what a great boxspring this is. I’ve only ever used traditional box springs but needed one that was metal for my son‘s bed. It is very well made, and has held that perfectly with a large mattress and my 19-year-old son. It was very easy to put together and very sturdy. ... show more
Reviewed in the United States on December 26, 2024 by Bedelia

  • Great price, simple assembly
Size: Queen Style Name: 9 inch Design: New Quick Assembly
I hate putting things together and I did this by myself in about an hour or less. Decent quality. One thing to note is if you are placing on top of a metal bed frame. Since this is also metal. I used a few small pieces of cardboard to prevent clink noises.
Reviewed in the United States on December 22, 2024 by Sarah

  • Great! Easy to put together!
Size: Queen Style Name: 9 inch Design: New Quick Assembly
This was exactly what I needed for my son's new bed and mattress. Fit perfectly in the bedframe and was easy to put together. Only took my husband about 15-20 minutes. Unlike those other brands that take hours. Would recommend to others.
Reviewed in the United States on January 6, 2025 by Amazon Customer Amazon Customer

  • 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

  • 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

  • Soooo easy to put together. Queen size
Size: Queen Style Name: 5 inch Design: New Quick Assembly
If I could give this more than five stars, I would! I could not believe how easy it is to put this frame together, there are only six screws needed to be placed for this bed everything else has snap in buttons like a patio umbrella would. The frame folds in half so you get a top and a bottom that fold out. I was able to carry it upstairs by half put it in my existing bedframe, unfold it do the same thing to the bottom part. The only thing I would recommend is that the two middle straight pieces be screwed together before placing them into the sides of the frame.(I would take a picture, but the bed is already together and the mattresses on it.) There are multiple support rods that go across and they just snap in place. The cover goes on like a fitted sheet. I do not find that it is loud nor squeaky. I bought the 4 inch one as I have a large tall mattress, I was able to put this together in less than 30 minutes would highly recommend this for anyone so much easier than trying to bring a boxspring up and downstairs. I may buy another one for my spare bed.. ... show more
Reviewed in the United States on December 6, 2024 by Maine girl

  • WouldBbuy Again
Size: Full Style Name: 5 inch Design: New Quick Assembly
This frame was easy to build with no extra tools needed. It feels super sturdy with the mattress on top and I am very happy with this foundation piece. It is our first time buying g one that came in a box and will definitely buy one that way again.
Reviewed in the United States on December 15, 2024 by Amazon Customer

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