ZINUS No Assembly Metal Box Spring / 9 Inch White Mattress Foundation / Sturdy Metal Structure, Split Queen

(10 customer reviews)


  • Sturdy Steel Frame With Poly Jacquard Cover
  • AS SIMPLE AS UNFOLD & UNWIND – Requiring no tools and zero tedious assembly, the innovative No Assembly box spring requires only unfolding to become bedtime ready; the hardest part will be taking it out of the box
  • DURABLY ENGINEERED – Durable steel is used to construct the interior framework of this reliable foundation; twin supports a maximum weight capacity of 350 lbs, while aother sizes can support up to 700 lbs; Queen, King and Cal King sizes are split versions
  • 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 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


Believe it or not, we’ve made the box spring more functional, more durable, and dare we even say, fun! Our No Assembly Box Spring is not your average foundation. Its folding design not only makes set-up insanely easy, but it also comes in handy on moving day, maneuvering easily in and around tight hallways and corners. What’s more, it features a structure made of thick and durable steel, meaning that frames and mattresses may come and go, but this box spring will be with you for the long haul. Once unboxed, this brilliant foundation practically assembles itself by taking shape once unfolded. Essentially, deciding where to place the bed will take longer than setting up this box spring. Backed by both our 5-year worry free warranty and hundreds of positive customer reviews, this box spring is about as easy as decisions get.

From the manufacturer

Zinus logo banner

boxspring with frame
Designed for Convenience

Unfold & Unwind

A bifold box spring offers the look and functionality of a typical box spring without its tedious assembly. It is expertly engineered from heavy gauge steel to improve durability and still fit into a single box for easy mobility around tight spaces.

available in 4, 7.5 and 9 inches profiles

Snaps into place like your wallet

boxspring steel frame

Strong, Stable and Sturdy

Built to Last

Interior steel framework adds premium strength, structure and longevity and requires no extra assembly.

quick assembly icon

Handyman Skills Not Required

Ready in No Time

If you can open a book, you can put together this one-and-done foundation in just a few minutes. A folding design makes set-up a snap and comes in handy when moving around tight corners and stairways.

Are any tools required to assemble my box spring?

No tools are required to assemble the BiFold box spring; that’s the beauty of it! Set-up is as simple as unbox, unfold and unwind.

Does this box spring require a bed frame?

A basic metal bed frame or platform bed is required to support this box spring. Add your mattress, and you’ve got the dynamic trio for rock solid support.

What kind of mattress can this box spring support?

Our box springs are designed to do it all! Rest your memory foam, latex or spring mattress on top for smooth snoozing.

How much weight can this box spring support?

Excluding the weight of the mattress, Twin and Twin XL sizes can support a maximum weight of 250 lbs. Full, Queen, King and California King sizes can support up to 500 lbs.

Additional information

Weight 48.8 lbs
Dimensions 79 × 59.5 × 9 in
Product Dimensions

79 x 59.5 x 9 inches

Item Weight

48.8 Pounds



Country of Origin


Item model number


Fabric Type

Sturdy Steel Frame With Poly Jacquard Cover

Assembly Required


Warranty Description

5 year warranty.

Batteries Required




10 reviews for ZINUS No Assembly Metal Box Spring / 9 Inch White Mattress Foundation / Sturdy Metal Structure, Split Queen

  1. Amazon Customer

    EXCELLENT PRODUCTI needed a box spring to raise a mattress. This box spring was delivered at 8:16 a.m. By 9:00 a.m., I had unboxed it, put in place on the platform, positioned the mattress on top, and made the bed. I am a 66 year-old-woman! Nothing had to be screwed, hammered, or drilled! I simply unfolded it and zipped the cover closed. It was super easy. I could have saved money by ordering the one that had to be put together, but this was money well spent.

  2. Amazon Customer

    Queen Bed Box Spring for small hallways or stairsThis product was great we have a really tight hallway that we have to go up the stairs in our house and before I had to take the box spring apart and put it back together again to get it up the stairs these work perfectly undid perfectly and work great super silent don’t hear anything anymore.

  3. DL

    Great alternative to the classic box springThis box spring was great. Not only did it come in a thin box, but it was very easy to fold out and set up. I got this because it looked easy to maneuver and move, and was not disappointed. A great product, particularly if you have to move often.

  4. Stefanie Rothert

    So far so goodEasy to unpack. I added extra covers. After one night they seem great

  5. GoldStreamBoutique

    Great product, came fast and as described.Great product, came fast and as described.Very happy.

  6. S Summers-Santiago

    Holding OnGreat box spring……still holding on

  7. Shambles

    Pretty good box springWhen the box got here, I was kind of surprised how slim it was. When I opened it, I was half way convinced I’d been shipped a metal bed frame instead of a box spring, and then I pulled it out and followed the incredibly simple instruction to unfold it , I saw that it is in fact a box spring. It folds out super easy. It’s pretty light weight. You fold it out and zip the already in place fabric cover closed around it. It’s a nice tall box spring without any actual springs or any fabric besides the covering. It’s going to be easy to clean. I can fold it back up for storage if I need to. It made the twin bed in my guest room much taller, which is great for adults. I would not recommend for a small child’s room because it might be too tall for a little one, unless you have no bed frame and will place it directly on the floor. I bought it to increase the air flow beneath the bed and raise the mattress up so older people can get in and out easy.

  8. FZ1Driver

    Highly reccomend this.Works great. Easy to set up. Supports the mattress solidly.

  9. Taser Me

    A Box Spring in a Box! What Genius Thought of This?My experience with this box spring began with two surprises. The first was when I saw how narrow the shipping box was. I was certain that I had been sent the wrong item. The second surprise was after I had pulled the box spring out of the box and removed the plastic wrap. The thinness of the unit furthered my belief that I had been sent the wrong item.Magic happened next. I am not a magician but I performed magic when I unfolded the unit and that skinny frame of metal and cloth suddenly filled out and in mere seconds transformed into a 9” thick twin XL box spring. Wow! The change was so cool, that I folded it and again unfolded it paying careful attention to the metal innards rising to the occasion.Unlike many reviewers who wrote about how the box spring was a great solution for an upstairs bedroom, I had no such transportation concerns. I wanted a box spring to replace the squeaky and creaky wooden one that I had.I chose this box spring for three reasons. First, its price was competitive in comparison to the box springs sold in bed stores. Second, it was favourably reviewed here. Third, Amazon has an attractive return policy that allows me to shop with confidence.I have been using the box spring off and on for a month, and it has met all of my expectations. It adds firmness to the mattress and height to the bed. Most important to me, it does its job in silence. Pretty soon that bed is going to be used nightly for a full year, so the box spring is going to get a real workout.Some reviewers have pointed out that in time—possibly in just a few short months—the box spring will start to squeak and creak. I certainly hope that those are isolated cases or the box spring has been improperly used.As of now, I am very pleased with this box spring. If it gives me a number of years of good service I will be delighted with the purchase.Just a couple of final comments. To ready the box spring for use, you simply remove it from the plastic and unfold it being mindful that the cloth cover doesn’t get caught in the metal. It took me more time to get it out of the box and remove the plastic than to unfold it. Second, the cloth cover is not to be removed to be cleaned. It states clearly in the literature that comes with it that you should only spot clean it.

  10. Shawn Christopher

    It’s soooo easy to put together !The easiest bed spring I’ve ever assembled. Literally take it out of the box and open it and place it on your bed frame. Took me and my Girlfriend 2 minutes to take out of the box and lay down on the bed frame. I’m mad I didn’t think of inventing it first !!! Amazing product!!!!!

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