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ZINUS 7 Inch Metal Smart Box Spring with Quick Assembly / 350 lbs Mattress Foundation / Strong Metal Frame / Easy Assembly, Twin XL,Grey

  • Based on 17,790 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Sep 8
Order within 14 hours and 54 minutes
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Size: Twin XL


Style Name: New/upgraded with quick assembly


Features

  • 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
  • THOUGHTFULLY PACKAGED - All parts 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

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: Twin XL


Product Dimensions: 78.7"L x 75.5"W x 7"H


Special Feature: Durable


Color: Grey


Finish Type: Steel


Size: ‎Twin XL


Product Dimensions: ‎78.7"L x 75.5"W x 7"H


Special Feature: ‎Durable


Color: ‎Grey


Finish Type: ‎Steel


Included Components: ‎Steel Frame, Cover


Brand: ‎Zinus


Assembly Required: ‎Yes


Item Weight: ‎25.8 pounds


Country of Origin: ‎China


Item model number: ‎ZU-ABS-7XS


Date First Available: April 11, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 8

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


  • Sturdy and easy to assemble box spring
Size: King Style Name: New/upgraded with quick assembly
I recently purchased the ZINUS 7 Inch Metal Smart king size Box Spring, and I couldn't be happier with my decision. The assembly process was a breeze, thanks to the quick and straightforward instructions provided. It took me no time at all to have a sturdy and reliable foundation for my mattress. The metal construction gives this box spring a robust feel, ensuring durability and long-lasting support. The 7-inch height is perfect for my mattress, providing just the right amount of elevation without feeling too high. I've noticed a significant improvement in the overall comfort of my bed since switching to this ZINUS box spring. If you're looking for a hassle-free assembly, solid construction, and a budget-friendly option, the ZINUS 7 Inch Metal Smart Box Spring is an excellent choice. I highly recommend it for anyone in need of a reliable foundation for their mattress. ... show more
Reviewed in the United States on December 29, 2023 by GS

  • lightweight once assembled sturdy and useful
Size: Queen Style Name: Original
If you are staring at this in your cart like I did for several weeks, BUY THIS! I am full figured and hubby is a rough sleeper and this sturdy assembly holds us well I have it placed on a platform frame I also bought here and both are holding up well. Because of the metal on metal, I secured the box spring to the platform frame using zip ties two on top and to at the foot of the assembly and it dont shift as much as some others have said. It lifts us up enough I dont feel like I am sleeping on the floor anymore (platform only sits the bed about 18 inches from floor I got the 7in lift and it makes all the difference) I was skeptical about buying a boxspring in pieces but the assembly is fairly easy if YOU FOLLOW THE PICS NOT THE WORDS. The numbers are placed a bit wonky on the pieces but it goes together well. I'll update in a few months after nightly use and let you know how it holds up ... show more
Reviewed in the United States on February 5, 2024 by Martine F.

  • Straightforward assembly, solid once together
Size: Full Style Name: New/upgraded with 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

  • Reliable and Sturdy: a Great Foundation!
Size: Queen Style Name: New/upgraded with quick assembly
I recently purchased the Zinus 7 Inch Metal Smart Box Spring for my queen size bed and I must say, I am quite impressed with this product. The assembly was quick and easy - I was able to set it up in just a matter of minutes, without any tools. The metal frame is sturdy and strong, and it provides excellent support for my mattress. I also appreciate the fact that this box spring is only 7 inches high, which makes it the perfect height for my bed. It's not too high, nor too low - just the right height for comfortable sleeping. The design of this box spring is quite smart, too. The metal frame is well-crafted and the corners are reinforced to prevent any wobbling or shaking. The overall build quality of this product is top-notch and I am confident that it will last me for many years to come. The only reason I am not giving this product a perfect 5-star rating is that it does make a slight creaking sound when I move around in bed. However, this is not a major issue and it does not affect the overall performance of the box spring. Overall, I would highly recommend the Zinus 7 Inch Metal Smart Box Spring to anyone who is looking for a reliable and easy-to-assemble mattress foundation. It's a great value for the price, and it has exceeded my expectations in terms of quality and durability. ... show more
Reviewed in the United States on April 27, 2023 by The Feedback Fiend

  • Excellent and SO easy to put together!
Size: Full Style Name: New/upgraded with quick assembly
I love putting household items together, and this was no exception! The instructions are super clear and easy to understand. I had a little trouble because I had to stand it up at one point to click in the final corner, but other than that, it was actually enjoyable - threw on some music, had a glass of wine and within 30 mins it was on my bed frame! I am not strong and it was even ok to move from the room I put it together in to my bedroom. I will definitely purchase more items from this company, as this is excellent and I’ve been using it for many weeks as of now. Very, very strong metal frame - great for those of us who might not have great luck with things falling etc that might compromise a lesser frame! ... show more
Reviewed in the United States on February 19, 2024 by Becky

  • Easy in fast setup
Size: Twin Style Name: New/upgraded with quick assembly
I was looking for 2 box spring like old style made of woods but can find much so I got this catch my eys see the reviews and was good the setup take me only 10 min on the 1st one and the 2dn one only 5 minutes easy and steady no issues worth it thank u
Reviewed in the United States on February 13, 2024 by Josef

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