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ZINUS Metal Box Spring with Wood Slats /9 Inch Mattress Foundation / Sturdy Steel Structure / Easy Assembly, Twin XL

  • Based on 12,182 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jul 29
Order within 1 hour and 16 minutes
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Size: Twin XL


Style: 9 Inch


Pattern Name: Smart Box Spring


Features

  • Steel Interior Frame With Wood Slats and a Knitted Polyester Cover
  • A MATTRESS GAME-CHANGER - Any decent mattress needs a good foundation behind it, and this box spring is one of our best; built with all of the trusted support we put into our ever-so-popular platform beds, this game-changing box spring has the total package - an unwavering steel structure, reliable, closely spaced wood slats and a compact, cleverly developed, well, package
  • DURABLY ENGINEERED - Durable steel and wood slats are 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
  • 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

Size:Twin XL | Style:9 Inch | Pattern Name:Smart Box Spring Chances are you’ve spent a long time picking out your ideal mattress. So why not put it on top of a foundation that will do it justice? The Metal Box Spring with wood slats is designed to steadily support your beloved mattress, be it spring, latex or memory foam. And with its proven solid steel structure and closely spaced wood slats, it’s a base you can sleep on with total confidence for the long haul. Created to fit in one package with everything you need and assembly that only takes a few steps to complete, this one is a slam-dunk in a box. Three different profile heights make it easy to choose the one that suits your setup, and its worry-free 5 year limited warranty means that we’ve got your back (literally and figuratively!).


Product Dimensions: 79 x 38 x 9 inches


Item Weight: 41.6 pounds


Manufacturer: Zinus


Country of Origin: China


Item model number: AZ-HBBS-9TXL


Is Discontinued By Manufacturer: No


Fabric Type: Steel Interior Frame With Wood Slats and a Knitted Polyester Cover


Manufacturer's Suggested Maximum Weight: 350 Pounds


Assembly Required: Yes


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


Batteries Required?: No


Included Components: Foundation, Wood Slats, Cover


Frequently asked questions

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

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


  • A word of caution for foam mattresses
Size: Full Style: 9 Inch Pattern Name: Smart Box Spring
Got this to use as a box spring base for my new Ghostbed mattress. Since most internet-ordered foam mattresses are essentially the same, I assume my advice here may be suitable for others also thinking of using this for Casper, Leesa, Purple, Tuft, Tempurpedic, Helix, etc. The box spring itself is incredible easy and quick to put together. The price is also great. I highly recommend this as a generic box spring. A word of caution for the foam people though - the slats on this item are 3 inches apart. Someone else guesstimated they were 2.5" and I purchased the item based on their guess. Well, I actually measured it with a ruler once I got it and the slats themselves are 3" wide and the space between them is also 3". This might be a hiccup because I emailed Ghostbed the company and they prefer a 2-inch or closer slat foundation, well tighter than the 3 inches this provides. Since all of the foam mattresses are essentially the same, the other companies likely have the same requirements. I am keeping this item regardless since I only have a full mattress (which is still quite heavy) but it's only being used by my very small daughter for the next few years. I'm hoping it'll be OK, but if you're in the market for a foundation for your new internet foam bed, I would recommend looking around to see if you can find any other box springs with closer-together slats. ... show more
Reviewed in the United States on February 18, 2018 by JB

  • Highly Recommended
Size: Queen Style: 7.5 Inch Pattern Name: Smart Box Spring
The slats are strung together so you don't have to worry about spacing them incorrectly and having to redo it. I didn't have a problem putting the casing on like others have mentioned. It fit perfectly. The screws and allen wrench is sealed in a package so it is nearly impossible to not receive what you need. Even a child could put this together. Highly recommended. ... show more
Reviewed in the United States on June 18, 2017 by Sharpie

  • King size - BEST DECISION!!
Size: King Style: 4 Inch Pattern Name: Smart Box Spring
Pic #1. The assembled foundation Pic #2. The bed it went on This product is amazing. I was initially very hesitant to purchase something like a box spring / mattress foundation online. The local furniture stores were offering 2 twin size box springs for my King size bed. (I previously owned a Queen size bed and had newly purchased a King size). The prices for the box springs / foundations were easily $250+. This one instead was half the price. I must say it is TOTALLY WORTH IT. PACKAGING Perfect condition. Safely put together, so as to not damage the product. Comes with the nuts & bolts, an Allen key to help assemble the piece a good quality cover and an extremely easy image guide. ASSEMBLY Assembling the product was so much fun. I literally finished it in less than 15 mins without the help of my husband. YES! This can be done by 1 person. SIZE Some review do state that the king size foundation was smaller than the bed. But do not worry, once you put your mattress over it, it is not at all an issue. Personally I fee it's a good thing that there is some space on the four sides. FINAL VERDICT It has been roughly 2 months size we bought this product and I do not regret it one bit. It does not creak considering that it is made of metal. It is surely wayyyyyyy better than the wooden box springs out there. AGAIN - totally worth every penny. Would definitely recommend this product and would buy it again if need be. ... show more
Reviewed in the United States on July 10, 2017 by zanaibaf1715

  • Functional & OK...after fixing two issues
Size: Queen Style: 9 Inch Pattern Name: Smart Box Spring
Queen Size: Pros - easy to assemble -attractive with zip on cover, I did not have problems putting the cover on that some folks did. Cons -The correct width for a queen size box frame in the U.S. is 60". The advertised width is 59.7" however the actual width is 59.5". Doesn't sound like much of a big deal but that loss of 1/2 inch was enough to make it unsafe for my oak bed frame, should the box frame move a bit side to side which would be normal. I had to cut some 1/2 inch wood spacers to insert between this box frame and my oak bed frame to prevent it from potentially falling through the oak bed frame supports. It's a head scratcher why Zinus would deliberately design the width to be less then standard. -The ends of the wood slats are held in place with velcro. If your mattress is flexible and you weigh enough these wood slats could slightly bow under load, which is by design really and not a bad thing...but the velcro is not of the heavy duty kind and while assembling I could see that the slightest pressure in the area where your weight would be puts an upward pressure on the slat ends and low and behold emits that familiar sound of velcro seperating. Maybe the mattress would mute that..maybe not...I think it would depend on the weight of the mattress and the sleeper, so to avoid that problem I drilled small pilot holes in the slat ends and screwed them down with self tapping lathe screws. I get that Zinus is going for quick assembly but feel that they should either use super heavy duty velcro or design the slats to be latched down more securely. ... show more
Reviewed in the United States on March 22, 2018 by Jack

  • Terrible customer service for an otherwise decent product
Size: Queen Style: 4 Inch Pattern Name: Smart Box Spring
The box spring itself seems a good way to go for an inexpensive assemble-it-yourself option. Unfortunately, we received a damaged piece that looks like it was crushed in shipping, though hard to imagine given it appears to be pretty sturdy steel construction. Our experience in attempting to resolve this (requesting a replacement part) with Zinus has been terrible, however. We've initiated contact with Zinus customer service 5 times now through a combination of chat, telephone and email support channels, and as yet do not have resolution. This despite a few different promises that the request was being reviewed and I would hear back within 24-48 hours, and jumping through hoops to provide information about the order, photos, and even their own assembly instructions highlighting which piece was damaged. I spoke with a Zinus customer service rep yesterday and let them know today is the last day of eligibility for me to return the item to Amazon for a refund. I was promised I would hear back by the end of day yesterday with resolution, but again they failed to respond as indicated. ... show more
Reviewed in the United States on July 10, 2020 by RJP

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