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Zinus

ZINUS Quick Lock Metal Smart Box Spring, 9 Inch Mattress Foundation, Strong Metal Structure, Easy Assembly, Queen, White

    • Based on 9,447 reviews
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Jun 6
Order within 16 hours and 42 minutes
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Size: Queen


Style Name: 9 Inch


Design: Smart Box Spring


Features

  • Steel Interior Frame With Steel Slats and a Poly Jacquard Cover
  • HASSLE & HEADACHE FREE - The Quick Lock Metal Smart Box Spring comes together with easy-to-follow instructions, fewer bolts and absolutely no headaches; assembly thats intuitive and packaging that seems to defy the laws of physics - now thats what we call a new-age box spring
  • DURABLY ENGINEERED - A durable steel frame is used to construct the interior 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
  • THOUGHTFULLY PACKAGED - All parts, tools and instructions are packed into one compact box that ships straight to your door; Quick Snap assembly system makes set-up intuitive and stress-free
  • 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 the Quick Lock Metal Smart Box Spring as the 2.0 version of your traditional mattress foundation. Made sturdier than ever by its substantial steel frame and with its game-changing assembly method, we’ve developed a better way to deliver great sleep to your door. Created with closely spaced slats to accompany your latex, memory foam or spring mattress, this durable box spring comes in three different thicknesses so your bed can be as short or as tall as you like it. The Smart Box Spring features our fool- proof Quick Lock assembly system, meaning you spend less time screwing in bolts, and you get to be pleasantly surprised by how simply and quickly it comes together. You may even pat yourself on the back once you’re done (in fact, we encourage that). We’re so sure of this foundation (along with hundreds of happy customers) that it’s backed by a 5 year worry-free warranty, so you can sleep confidently for years to come.

Product Dimensions: 79 x 59.5 x 9 inches


Item Weight: 51.5 pounds


Manufacturer: Zinus


Country of Origin: China


Item model number: OLB-QLBS-9Q


Is Discontinued By Manufacturer: No


Fabric Type: Steel Interior Frame With Steel Slats and a Poly Jacquard Cover


Assembly required: Yes


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


Batteries required: No


Included Components: Foundation, Steel Slat, Cover


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 6

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

    • Need a sturdy box spring for a Dream Cloud Hybrid Mattress, this is it!
Size: King Style Name: 4 Inch Design: Smart Box Spring
Review Image by Kindle Customer Kindle Customer
Review Image by Kindle Customer Kindle Customer
Review Image by Kindle Customer Kindle Customer
Review Image by Kindle Customer Kindle Customer
We recently purchased a Dream Cloud Premier Hybrid Mattress two weeks ago to replace the mattress we had had on our king size bed for the last 10 years. This new hybrid mattress we bought from the Dream Cloud web site is great, but at a height of 14 inches, it was 5 inches thicker than what we had. After it arrived we decided to keep and use the current double box spring we had been using, which were 9" thick, and metal bed frame with headboard that we already had. But we found with that 5 inches of increased height with our new hybrid mattredd that the top of the bed was now much higher then we liked. We love our new mattress, but with having our mattress 5 inches higher it was a little more effort to get on the bed and our feet didn't touch the floor when we sat on the edge of the bed. We were new to the hybrid mattress requirement of not needing a regular box spring, so we decided to see if we could go lower. I read all the reviews for platform bed frames designed for a hybrid mattress. Many of these reviews, the ones made out of wood, complained about their platform bed frame not holding up, with their wood slats cracking, breaking, and making noise, legs breaking off, etc. We surely didn't want any of that plus we wanted to keep out headboard at the same time. Those reviews helped us decide on trying this metal box spring by Zinus. We selected the 4" thick choice for our king size bed cause we wanted the bed top lower. Let me tell you, we are 100% satisfied with the way it is constructed, the ease of putting it together, and the way our new 14" hybrid mattress fits on it. Everything fit like a glove. It doesnt make a sound if we get up or toss and turn, and the mattress stays in place. Here are a few pictures we took as we put it together from start to finish. Before we put the new 4" metal box spring together, we removed those two 9" box springs we had to make room for the new metal one. It took us about 30-40 minutes to put the metal pieces together but it all went smooth. Everything fit nice and easy. The small rachet wrench that is included was a big help in tighting everything. And it only 16 screw bolts were required to fasten everything. Once finished, this new box spring fit right inside the original metal bed frame we had. The fabric cover went on next and fit over the top like a fitted bed sheet. Next we placed our new 14" mattress on top of everything and were very excited with our it fit the bed now. We actually had more mattress support when we laid on the bed. My husband and I were also now able to sit completely on each side of the bed with our feet on the floor. Having the top surface of the bed 5 inches lower on a metal frame strong enough also to support everything has made all the difference. We couldn't be more satisfied. If you have a king size hybrid mattress and want it lower to get on easier with plenty of support underneath this is the metal smart box spring to get. UPDATE: 7 days later. Both of use are enjoying our new mattress very much, thanks to the 4" metal box frame. No moverment what so ever, solid as a rock. The lower height we now have has made all the difference. One thing I wanted to add if you order the king size box, is the box is heavy. My husband had to use a 2-wheel dolly to move it from the front door, through the house and into the rear bedroom. But once the box is open, all the pieces are marked and easy to connect. 2nd UPDATE: Box spring frame is still doing good. Has been a month since we received this, and we'll still 100% satisfied with our purchase. The upper mattress does not move at all, and makes no noise getting on, moving about on it, or getting off of it. We like it enough that we're going to purchase a similar box spring like this for a twin bed that we have in another room sometime this year. ... show more
Reviewed in the United States on June 15, 2023 by Kindle Customer Kindle Customer
    • Easy to put together, improved the firmness of our soft foam mattress
Size: King Style Name: 4 Inch Design: Smart Box Spring
I just want to say I’m so glad this product exists. It’s well made and was very easy to put together. But most importantly, this was a major upgrade for our foam mattress and king size bed. Before the Zinus smart box spring, we just had our mattress on the wood slats that came with the bed. The mattress was too soft and lumpy, and we suffered for years. I was finally ready to start all over with a new mattress, new bed, everything. We had a budget of $3000, but before we spent the money I did a little research and read that a former platform might improve our droopy mattress. Our small investment in this smart box spring totally paid off, as we love the feel of our mattress now. It’s a completely upgraded experience. The bed no longer creaks every time we get in, and we’re both sleeping better. Fantastic product! ... show more
Reviewed in the United States on September 26, 2023 by Rupert P.
    • Perfect answer to my problem!
Size: Full Style Name: 4 Inch Design: Smart Box Spring
Very sturdy. Easy to put together. Cover works and looks good. Couldn't be more satisfied.
Reviewed in the United States on April 6, 2024 by Ann B
    • Sturdy, easy-to-put-together foundation
Size: King Style Name: 7.5 Inch Design: Smart Box Spring
Review Image by Mike Mike
The instructions were clear (see attached photo of instructions for the simplicity of this unit's build), all parts were in the package, and every hole lined up perfectly. This is the third bed product I've bought from Zinus and every one was perfect and a non-regrettable purchase. The packaging of the foundation was great, and the item was well protected and had no damage. It took more time disposing of the packaging than actually building the unit. Some have said the cover was difficult to deal with but I didn't find that to be true. It fit perfectly, and I had no worries that it may tear. If I had to buy another bed product, Zinus is my Go-to retailer. ... show more
Reviewed in the United States on April 2, 2024 by Mike Mike
    • Perfect box springs
Size: Queen Style Name: 7.5 Inch Design: Smart Box Spring
I bought this “box spring” to use under my new mattress. It is fairly easy to put together just read the directions and take your time. It took me around 45 mins to put together by myself. This is solid, does NOT squeak, the partitions are 2 inches apart, very stable, durable, and all around it is perfect!! was disappointed that I did not get the zip up case to cover the whole box spring, they sent a slip cover, like a mattress pad cover, it only covers half of it. I was highly annoyed and disappointed, that was one of the biggest reason I bought this box spring. I did not open the bag the cover came in until the end when all was out together. Only reason I gave 4 stars. Would I purchase this again YES, I just wished I would have gotten the zip up cover where the whole box spring was covered!!!!! ... show more
Reviewed in the United States on February 4, 2024 by Amanda E
    • New design for box springs
Size: Full Style Name: 4 Inch Design: Smart Box Spring
All mattresses need good support, and this box spring by Zinus definitely provides that, what makes it better is it's metal so there's nothing to bend or sag over time like wood often does, it's wonderfully quick and easy to assemble, it makes no noise when you move around in bed, and what's most important is the close spacing of the slats across the top for the mattress which provides the outstanding support for the mattress, this box spring by Zinus is excellent and is something you'll be glad you bought ! ... show more
Reviewed in the United States on March 28, 2024 by Amazon Customer
    • Easy to assemble and sturdy
Size: King Style Name: 7.5 Inch Design: Smart Box Spring
This was easy to put together and seems sturdy. Gives better support than a standard box spring with a hybrid or foam mattress. Worked so great I bought a second one for my daughter too.
Reviewed in the United States on March 31, 2024 by SaraMcc
    • HIGHLY RECOMMENDED !!!
Size: Queen Style Name: 4 Inch Design: Smart Box Spring
We were so impressed by this support foundation. Very well made with its style of construction and material used made for superior support This system came with the necessary tool kit and instructions making it easy to put together. Highly recommend this support system. Thank you for an excellent product and a price that is very reasonable …… ... show more
Reviewed in the United States on February 11, 2024 by Kathryn

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