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Zinus

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

    • Based on 81,993 reviews
Condition: New
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$234.87 Why this price?
Holiday Deal · 61% off was $597.79

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: Only 4 left in stock, order soon!
Fulfilled by Shellyz Brands
Arrives Dec 30 – Jan 5
Order within 9 hours and 2 minutes
Available payment plans shown during checkout

Size: King


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 lbs, while all other sizes can support up to 700 lbs
  • HIGH PROFILE DESIGN - A 9 inch height is perfect for shorter mattresses or for those who enjoy their bed higher off the floor; For the fastest resolution and to avoid delays, please describe your issue as precisely as possible
  • 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.

Product Dimensions: 79 x 75.5 x 9 inches


Item Weight: 45 pounds


Manufacturer: Zinus - DROPSHIP


Item model number: OLB-ABS-9K


Is Discontinued By Manufacturer: No


Fabric Type: Steel Interior Frame With Knitted Polyester Cover


Care instructions: Wipe with Damp Cloth


Assembly required: Yes


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


Batteries required: No


Included Components: Foundation, Cover


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 30 – Jan 5

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Excellent!!
Size: California King Style: Box Spring (New Easy Assembly)
I recently purchased the ZINUS 9 Inch Metal Smart Box Spring for my California King mattress, and I couldn't be happier with my decision. Here’s why this product deserves every bit of its five stars: **1. Quick and Easy Assembly:** The term "Quick Assembly" isn't just marketing talk. Within 15 minutes, I had this foundation fully assembled. The instructions were clear, and the design is ingeniously simple. No tools needed, which was a major plus for someone like me who is not particularly handy. **2. Durability and Support:** Made from strong metal, this box spring feels incredibly sturdy. There's no sagging, even with the weight of my mattress and two people sleeping on it. It provides excellent support, ensuring that our mattress maintains its shape and comfort over time. **3. Versatile Use:** It's not just for box spring mattresses; it works perfectly with memory foam, innerspring, and other mattress types. This versatility makes it a great choice regardless of what kind of mattress you have or might purchase in the future. **4. Quiet and Stable:** One of the things I appreciate most is how quiet it is. No creaking or squeaking, which is a common issue with some foundations. It remains stable, even when getting in and out of bed, which adds to the overall sleeping experience. **5. Aesthetically Pleasing:** The design is sleek and modern, adding a touch of elegance to the bedroom. It's not just functional; it looks good too, blending well with various bedroom décors. **Conclusion:** The ZINUS 9 Inch Metal Smart Box Spring is an outstanding investment for anyone looking to enhance their sleeping environment. It combines ease of use, durability, and style in a package that delivers excellent value for money. I recommend this to anyone who wants to upgrade their bed setup without the hassle. A truly smart choice for a smarter sleep! ... show more
Reviewed in the United States on October 9, 2024 by slobobdan
    • Strong, Sturdy, and Easy to Assemble!
Size: Queen Style: Box Spring (New Easy Assembly)
The ZINUS 9 Inch Metal Smart Box Spring has been an excellent addition to our bed setup! I was impressed by how easy the assembly process was—everything came neatly packaged with clear instructions, and I had it put together in under an hour without any hassle. The design is very smart and straightforward, making it much more convenient than traditional box springs. This box spring provides strong, sturdy support for our mattress, and it has noticeably improved the overall comfort of our bed. The metal frame feels very durable and solid, and I love that it doesn’t squeak or shift, even with movement during the night. It’s also lightweight enough to move around if needed, yet still very stable once in place. The 9-inch height is perfect—it gives our bed the lift we wanted without being too tall, and it works great with our existing bed frame. Another big plus is that the cover has a nice, clean look that blends seamlessly with our bedding. Overall, I highly recommend this ZINUS box spring for anyone looking for an affordable, high-quality foundation that’s easy to assemble and provides reliable support. It’s a great value for the price! ... show more
Reviewed in the United States on August 25, 2024 by Amanda Cruz
    • Best Box Spring Ever!
Size: Queen Style: Box Spring (Original)
This product is great, I am 100% satisfied with this purchase. I am using this box spring with a Nature Sleep memory foam mattress. If you have an innerspring mattress your mileage may vary. My review as follows will cover several different aspects of this product and why they are great. Portability: Who knew you could assemble a box spring instead of lugging around a 50+ pound bulky wooden frame? Once assembled, the frame is lightweight and much easier to move around than a traditional box spring. The next time I move I am just going to take it apart instead of it taking up space in the moving truck, very economical in that sense. Assembly: Assembly was very easy, no mechanical inclinations required from the assembler. The set comes with an allen wrench/hex key and you use that to hold bolts in place while you tighten wingnuts with your fingers. Please ignore any reviewer of this product who said it was too difficult to assemble, took too long, or had confusing instructions, they are either lazy or completely incompetent. It took me about an hour to assemble by myself, and it would have taken even less time if I hadn't been half watching TV and drinking a beer while I was putting it together. The instructions aren't written words, but pictures showing which pieces to assemble with which bolts, but if you ever built a Lego set when you were a kid you should be able to handle this. It is easy to tell which pieces should be facing up during assembly, because most have a 'this side up' sticker. The pieces that don't, it either doesn't matter which side is up or you can tell which side should be up because of the notches the slats will fit into at the end. The Cover/ Looks: The zip cover looks nice and the white sides are a soft plush. Make sure you sweep your floor before zipping the cover on though or you might get dirt all over the nice white part. Some people said that the cover ripped when they were zipping it up, that was not the case for me. The cover is a very tight and perfect fit, but the white sides stretch. So when you zip it on, don't just yank on the zipper as hard as you can, pull up on the white parts that stretch and it will make the zipper easier to close. Durability: It seems sturdy enough to me. I have had for two weeks, no complaints. I have unzipped and re-examined the frame and it has not bent or buckled under the weight of two people or any vigorous activity. Could you bend the metal of the frame after you put it together? I guess you could if you tried to, but why would you do that deliberately? Putting a mattress on top of it and using as intended should leave you with no issues. I hope this review provided all the information needed to help in your purchase decision, and I am sure you will be satisfied with this box spring. ... show more
Reviewed in the United States on April 29, 2015 by Brad
    • Great for the price
Size: Queen Style: Box Spring (Original)
This product was easy to put together and served its purpose. Not the best box spring but it works for the price. Over time the bolts loosen and it becomes unsturdy but it was good for a few years.
Reviewed in the United States on November 23, 2024 by Amazon Customer
    • Easy to assemble and very sturdy, get it.
Size: Queen Style: Box Spring (New Easy Assembly)
Ordered the queen size to replace a wooden box spring for a foam and then hybrid mattress. Assembly was simple, without issue, and everything fit (parts, cover, etc.). The included allen ratchet wrench is a nice touch and helped with a speedy install. Note: I initially received the wrong item via another order, but replacement and refund were easy enough. ... show more
Reviewed in the United States on November 3, 2024 by KindleBonfire

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