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Zinus

ZINUS 7 Inch Metal Smart Box Spring, Mattress Foundation, Strong Metal Frame, Easy Assembly, Twin

  • Based on 18,590 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jul 17
Order within 6 hours and 54 minutes
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Size: Twin


Style Name: 7 inch


Design: Original


Features

  • TWIN DIMENSIONS - The dimensions of this standard twin size box spring are 74 x 38 x 9 inches. The length is 5 inches shorter than our Twin XL size. Please measure your bedframe to ensure compatibility.
  • 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 and is backed by our ZINUS Peace of Mind 5 year warranty
  • 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 Full, Queen & King sizes can support up to 700 lbs
  • 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.

Size: Twin


Product Dimensions: 74"L x 38"W x 7"H


Special Feature: Durable


Color: Grey


Finish Type: Steel


Size: ‎Twin


Product Dimensions: ‎74"L x 38"W x 7"H


Special Feature: ‎Durable


Color: ‎Grey


Finish Type: ‎Steel


Included Components: ‎Cover, Steel Frame, Slat


Compatible With Mattress Size: ‎Twin


Brand: ‎Zinus


Furniture Finish: ‎Alloy Steel


Product Care Instructions: ‎Wipe with Dry Cloth


Assembly Required: ‎Yes


Ground To Item Distance: ‎7 Inches


Manufacturer: ‎Zinus


UPC: ‎841550100099


Form Factor: ‎simple flat metal frame


Global Trade Identification Number: ‎99


Item Weight: ‎25.7 pounds


Country of Origin: ‎China


Item model number: ‎OLB-ABS-7T


Is Discontinued By Manufacturer: ‎No


Date First Available: December 29, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 17

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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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Highly recommend. Sturdy
Size: King Style Name: 9 inch Design: New Quick Assembly
While easy to assemble the pictures in the instructions didn't fully explain how to put together. Very sturdy and would buy again as it is light enough and if moving you could take apart to avoid the hassle of trying to navigate through tight corners.
Reviewed in the United States on June 28, 2025 by Angela Jackson
    • Squeak-Free w movement on matresss
Size: Queen Style Name: 5 inch Design: New Quick Assembly
Durable. Easy to put together. Doesn't squeak when getting in and out of bed or while moving around on bed. I'd recommend to anyone looking for a quick easy set up at affordable price
Reviewed in the United States on July 7, 2025 by Andrew Elmer
    • close to perfect
Size: Queen Style Name: 5 inch Design: New Quick Assembly
I spent a ridiculous amount of time comparing prices and features before ending up with this purchase and I am so glad I did! Everything is perfect, all the parts, the fit, the engineering, even the finished look. Easy to put together with snap lock connectors. I have a relatively thin mattress and still can't feel the crossbars through it. This is day one. All the negative comments about bed foundations from other sellers don't seem to apply here. As for durability, my expectations are high but we'll have to wait and see. ... show more
Reviewed in the United States on April 18, 2025 by Amazon Customer
    • First Impressions
Size: Full Style Name: 9 inch Design: New Quick Assembly
The Positives: -It was pretty simple to assemble (or would have been see cons). Just 6 screws. Straightforward instructions. Minimal parts to connect. -It feels solid with two adults and a child in it. -Not Noisy so far. Silent in fact. I was concerned about it being noisy so I added electrical tape at all metal to metal contact points. Particularly the end of the cross braces. This made things fit tighter and there shouldn't be any metal rubbing together now. Can't say this made the difference but it is quiet. -Price -The cover was easy to fit. It's basically just a fitted bed sheet. Cons: -No surprise, the metal is the typical cheap Chinese pot metal. -The machining for one of 6 screw holes was missing most of it's threads. This made it impossible to assemble using the screws provided. Thankfully I had a box of nuts and bolts and was able to complete the assembly without the screw. -Two of the cross braces didn't have the plastic grommet in the end of them. This would have meant extra metal to metal contact. I remedied this by fashioning my own grommet out of furniture foot pads. I shouldn't have needed to do this but I'm sure it will work better now anyway. Tip: Use electrical tape at all metal to metal contact points to avoid noisy metal to metal friction. This was at the end of cross braces and then the center contact point where 4 screws are connected. Summary: It was a very cheap solution that seems to solve the problem. If you don't have a little Macgyver ability you might want to avoid this. The quality of the material and machining matches the price. Ease of assembly with simple instructions is a plus. Will update if the thing falls apart. ... show more
Reviewed in the United States on December 9, 2024 by Beau
    • Easy to assemble and suitably sturdy.
Size: Queen Style Name: 7 inch Design: New Quick Assembly
Super easy to put together, just align and click. There were 8 bolts to install, but it came with nice little ratchet hex key that made that easy as well.
Reviewed in the United States on June 27, 2025 by R. Kay
    • Terrible construction and won’t stay put together.
Size: Queen Style Name: 5 inch Design: New Quick Assembly
Review Image by Gillian Murphy Gillian Murphy
Review Image by Gillian Murphy Gillian Murphy
Review Image by Gillian Murphy Gillian Murphy
If I could give this zero stars I would. Not particularly easy to assemble since everything came unlabeled, the directions just a couple pictures, but I figured it out. Purchased it to make my new bed firmer which it did do! But it does slide around a bit, annoying but again no big deal, I would just slide it back in place and planned on putting down rubber strips or something to help it grip. The issue: Occasionally when rolling over I heard a pop and worried something was breaking and woke up today with the corner of my mattress sinking. I pulled the bed off and realized a lot of the slats had come loose and the bed was sinking inside the frame. The slats aren’t long enough to meet all the way inside their little holders and every time the frame shifts they pop out of place. The four outside sides aren’t screwed in so they can be pulled slightly apart and they just pop right out. Seems like it wouldn’t be a big deal, but since it slides around on my frame it keeps popping out. Also the plastic joints holding the two middle pieces together have a small plastic piece holding it on, so no matter how you place it the weight of the mattress slightly off the frame pops it out of place and that is also contributing to the issue with the slats. Seems dangerous and bad for your mattress. I’m super frustrated with how this turned out and now I’m going to have figure out how to disassemble the whole thing and return it somehow. See pictures for a better explanation. ... show more
Reviewed in the United States on May 22, 2025 by Gillian Murphy Gillian Murphy

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