Search  for anything...

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

  • Based on 18,186 reviews
Condition: New
Checking for product changes
$87.99 Why this price?
Save $21.01 was $109.00

Buy Now, Pay Later


As low as $14.67 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

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.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Jun 23
Order within 3 hours and 17 minutes
Available payment plans shown during checkout

Size: Twin XL


Style Name: 7 inch


Design: Original


Features

  • TWIN XL DIMENSIONS - The dimensions of this XL twin size box spring are 79 x 38 x 9 inches. The length is 5 inches longer than our Standard Twin 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 XL


Product Dimensions: 5"L x 5"W x 7"H


Special Feature: Durable


Color: White


Finish Type: Steel


Size: ‎Twin XL


Product Dimensions: ‎5"L x 5"W x 7"H


Special Feature: ‎Durable


Color: ‎White


Finish Type: ‎Steel


Included Components: ‎Tools, Bed Frame, Instruction Manual


Compatible With Mattress Size: ‎Twin XL


Brand: ‎Zinus


Furniture Finish: ‎Alloy Steel


Assembly Required: ‎Yes


Manufacturer: ‎Zinus


UPC: ‎841550100105


Form Factor: ‎Metal Bed Frame with 7-inch Height


Global Trade Identification Number: ‎05


Item Weight: ‎26 pounds


Country of Origin: ‎China


Item model number: ‎OLB-ABS-7TXL


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: Monday, Jun 23

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.

Top Amazon Reviews


  • Easy to assemble
Size: Full Style Name: 5 inch Design: New Quick Assembly
Delivery was quick and my son was able to set up with minimal effort. He’s been sleeping on it for about a week now with no issues. It’s very lightweight but sturdy
Reviewed in the United States on November 9, 2024 by Debbz

  • SO EASY TO SET UP!!!
Size: Queen Style Name: 5 inch Design: New Quick Assembly
I am a 73-year old woman and I was worried that I would have to hire someone to set this up for me... NOT SO! The hardest part was getting the box upstairs. Once that was done it only took me 30 minutes to set this up. It was super easy, instructions were clear, and everything fit perfectly. This raised my mattress by 4". It is sturdy. The grey cover matches my bed frame. Absolutely great product. ... show more
Reviewed in the United States on October 14, 2024 by JMM

  • Perfect for our King bed
Size: King Style Name: 7 inch Design: New Quick Assembly
Putting this together was a snap! Quality product and comes with tools.
Reviewed in the United States on November 11, 2024 by Chanty

  • Reliable and Sturdy: a Great Foundation!
Size: Queen Style Name: 7 inch Design: New Quick Assembly
I recently purchased the Zinus 7 Inch Metal Smart Box Spring for my queen size bed and I must say, I am quite impressed with this product. The assembly was quick and easy - I was able to set it up in just a matter of minutes, without any tools. The metal frame is sturdy and strong, and it provides excellent support for my mattress. I also appreciate the fact that this box spring is only 7 inches high, which makes it the perfect height for my bed. It's not too high, nor too low - just the right height for comfortable sleeping. The design of this box spring is quite smart, too. The metal frame is well-crafted and the corners are reinforced to prevent any wobbling or shaking. The overall build quality of this product is top-notch and I am confident that it will last me for many years to come. The only reason I am not giving this product a perfect 5-star rating is that it does make a slight creaking sound when I move around in bed. However, this is not a major issue and it does not affect the overall performance of the box spring. Overall, I would highly recommend the Zinus 7 Inch Metal Smart Box Spring to anyone who is looking for a reliable and easy-to-assemble mattress foundation. It's a great value for the price, and it has exceeded my expectations in terms of quality and durability. ... show more
Reviewed in the United States on April 27, 2023 by The Feedback Fiend

  • Did not come with instructions
Size: Queen Style Name: 7 inch Design: Original
Although mine did not come with instructions, it was pretty self explanatory. It does not look the best and is okay quality. Serves its purpose. Mine had extra parts. It is not very versatile. Easy to move and assemble.
Reviewed in the United States on September 9, 2024 by Amanda

  • Easy to put together.
Size: Queen Style Name: 5 inch Design: New Quick Assembly
Directions were easy to follow. Only needed 1 person and 30 min. Great purchase.
Reviewed in the United States on November 17, 2024 by Tracy H

  • A must
Size: Full Style Name: 9 inch Design: New Quick Assembly
So affordable yet phenomenal n sturdy I just wish the cover was slightly a better quality yet for the price is unbeatable super fast shipping takes only a few minutes to out together less than 20 minutes
Reviewed in the United States on November 15, 2024 by Angie Phaithoon

  • My experience was poor
Size: Full Style Name: 9 inch Design: New Quick Assembly
I had to return this box spring because I obviously received one that had been purchased and returned by a previous customer. It was damaged and had parts missing. All the zip ties had been cut and placed in the plastic bag that had “instructions.” One silver stud that fits into hole was missing. Pieces that were supposed to slide together did not work as expected because one piece was either damaged, warped or constructed incorrectly. Of course I had it almost completely assembled when the time to use misaligned pieces occurred! Frustrating experience. Had to un-assemble and re-package for return. Just realized that I don’t recall seeing a cover included in the box, either! Cannot recommend this product based on my disappointing personal experience. PS…it is not as easy to assemble as some people claim!! ... show more
Reviewed in the United States on November 4, 2024 by For Your Information

Can't find a product?

Find it on Amazon first, then paste the link below.