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ZINUS 5 Inch Metal Smart Box Spring, 700 lbs Mattress Foundation, Strong Frame, Easy Assembly, Queen

4.5 4.5 out of 5 stars 22,415 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Box Springs by Zinus
$134.45 with 10 percent savings
Typical price: $148.58

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About this item

  • THE LAST BOX SPRING YOU’LL 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 all other sizes can support up to 700 lbs
  • LOW PROFILE DESIGN - A 5 inch height is perfect for taller mattresses or for those who enjoy their bed lower to the floor
  • THOUGHTFULLY PACKAGED - All parts, tools and instructions are packed into one compact box that ships straight to your door
  • Box spring only, a bed frame or platform bed is required to support this foundation and is sold separately
› See more product details

Customer ratings by feature

Pain relief
4.8 4.8
Sturdiness
4.4 4.4
Maneuverability
4.3 4.3
Easy to assemble
4.2 4.2
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ZINUS 5 Inch Metal Smart Box Spring, 700 lbs Mattress Foundation, Strong Frame, Easy Assembly, Queen
$134.45
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SafeRest 100% Waterproof Queen Size Mattress Protector - Fitted with Stretchable Pockets - Machine Washable Cotton Mattress C
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From the manufacturer

Smart BoxSpring
available in 5, 7 and 9 inches profiles
Original Smart Box Spring comparison
Stong Support fo a Good Night's Sleep
boxspring metal frame

Strong, Stable and Sturdy

Built to Last

Unlike a traditional box spring, this cleverly crafted foundation is made with a thick and sturdy steel frame for ultimate strength and longevity.

quick assembly icon

Handyman Skills Not Required

Build It, Stress-Free

All tools, parts and instructions are conveniently packed into one box for set-up that takes less than an hour with a friend's help. Now that's what we call smart!

Are any tools required to assemble my box spring?

This box spring is shipped with everything you need to assemble it - all parts, tools and instructions can be found efficiently packed in the shipping box.

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.

What is the distance between slats?

For Twin and Full sizes, spacing is 6.3 inches. For Twin XL, Queen and King sizes, spacing is 6.7 inches. For California King size, spacing is 7.2 inches.

Armita Smart Box Spring

Compare Zinus Box Springs

Assembly Required

Bed Frame Required

Steel

Frame Material

Steel

5, 7, 9"

Available Profiles

4, 7.5, 9"

Assembly Required

Bed Frame Required

Steel

Frame Material

Wood & Steel

5, 7, 9"

Available Profiles

4, 7.5, 9"

Assembly Required

Bed Frame Required

Steel

Frame Material

Steel

5, 7, 9"

Available Profiles

4, 7.5, 9"

Assembly Required

Bed Frame Required

Steel

Frame Material

Wood

5, 7, 9"

Available Profiles

4, 8"

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ZINUS 5 Inch Metal Smart Box Spring, 700 lbs Mattress Foundation, Strong Frame, Easy Assembly, Queen

ZINUS 5 Inch Metal Smart Box Spring, 700 lbs Mattress Foundation, Strong Frame, Easy Assembly, Queen

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From the brand

Product 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.

Product guides and documents

User Guide (PDF)
Installation Manual (PDF)

Top Brand: Zinus

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ZINUS 5 Inch Metal Smart Box Spring, 700 lbs Mattress Foundation, Strong Frame, Easy Assembly, Queen
Zinus ZINUS 5 Inch Metal Smart Box Spring, 700 lbs Mattress Foundation, Strong Frame, Easy Assembly, Queen
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Details
Added to Cart
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Price-10% $134.45
Typical: $148.58		$139.00-19% $217.79
List: $270.00		$190.18
Delivery
Get it as soon as Tuesday, May 14
Get it as soon as Tuesday, May 14
Get it as soon as Tuesday, May 14
Get it as soon as Tuesday, May 14
Customer Ratings
4.54.5 out of 5 stars22,415
4.54.5 out of 5 stars81,054
4.64.6 out of 5 stars5,211
4.64.6 out of 5 stars5,211
Sturdiness
4.4
4.4
4.4
4.4
Maneuverability
4.3
4.3
4.6
4.6
Easy to assemble
4.2
4.3
4.6
4.6
Sleep quality
3.7
4.5
4.2
4.2
Light weight
—
4.1
4.7
4.7
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
size
Queen
Queen
King
Queen
material
Alloy Steel, Fabric
Alloy Steel, Fabric
Wood
Wood
base type
Slatted
Slatted
Slatted
Slatted
frame material
Metal,Steel
Metal,Steel Frame
Wood
Wood
assembly required
✓
✓
✓
✓
weight
37.7 pounds
42.38 pounds
51.92 pounds
—

Customer reviews

4.5 out of 5 stars
4.5 out of 5
22,415 global ratings

Customers say

Customers like the ease of assembly of the bed frame. They mention that it goes together in a snap, the directions were not confusing, and that it provides a solid foundation for a memory foam mattress. They appreciate the value for money, saying it's worth the effort. Customers also appreciate the performance, weight, and noise. Opinions are mixed on fit.

AI-generated from the text of customer reviews

2,691 customers mention2,234 positive457 negative

Customers find the bed frame easy to assemble. They mention it's built pretty well and goes together in a snap. Some appreciate the clear directions and mention the bed is light and easy to move around.

"...The best part? It was so easy to assemble! I love that I didn't need any tools, the directions weren't confusing, and it was easy to maneuver once..." Read more

"...Extremely pleasantly surprised with just how easy the build process was. Done in 10 minutes! No screws, no tools, joints snap in!..." Read more

"...This box is metal and was super light and easy to assemble...." Read more

"...It took nearly 2 hours!This was the complete opposite. So easy to build, I was done in less than 20 minutes!..." Read more

1,734 customers mention1,519 positive215 negative

Customers like the sturdiness of the bed frame. They say the materials are good quality, and it provides a solid foundation for a memory foam mattress. They also say it's easy to put together and a precision made product that does not bend at all.

"...I love that this is metal so sturdier than the wood ones I've had in the past. The best part? It was so easy to assemble!..." Read more

"...Why don't more manufacturers do this?! Quality parts, a kid can literally assemble, it's that easy...." Read more

"...I paid slightly more for the upgraded version and I'm glad I did. It's sturdy, but also somehow lightweight, which meant I was able to get it on the..." Read more

"...It was easy to assemble and has been sturdy ever since." Read more

724 customers mention639 positive85 negative

Customers like the quality of the bed frame. They mention it's a great product, easy to assemble, and sturdy. Some say it'll do perfectly and is the best box spring for a twin bed.

"...I tell ya right now, this box spring is AMAZING! Not one squeak from this box spring. I think this thing has saved my marriage, lol...." Read more

"Easy to assemble. Was the perfect box spring if it wasn’t missing a piece. Assembling it was pretty easy." Read more

"This boxspring is great, easy to assemble, and removable cover in case anything ever gets spilled on it...." Read more

"...My new mattress is a hybrid 12-inch mattress and the box spring is the perfect support, even at such a low profile...." Read more

588 customers mention473 positive115 negative

Customers like the value of the bed frame. They say it's good value for the money, worth the money spent, and the quality for price is incredible. Some customers also say it feels confident and is worth the effort.

"The Sinus twin boxspring worked great for my needs at a good price in the size that I needed, 5 in...." Read more

"...Great Price, fast delivery & a precision made product, well labeled & every part was a high quality finish, precision drilled & fit like a..." Read more

"...Highly recommend for the price!" Read more

"...Definitely worth the money spent!..." Read more

408 customers mention394 positive14 negative

Customers are satisfied with the performance of the bed frame. They mention that it works well, is easy to put together, and works perfectly for their new bed frame and small lift. The bed support works exactly as expected, and the tool that comes with it works perfectly. The box spring is good quality and has not given them any issue since using. The frame is sturdy and works well with the all foam mattress that they already had.

"...It was the perfect height and works well with our mattress. It was super easy to assemble. My son and I did it quickly. I recommend this purchase" Read more

"Works great to lift my mattress to the level I wanted." Read more

"This was super easy to assemble and worked perfectly for a small lift under my mattress." Read more

"...Working well. Would recommend this." Read more

297 customers mention210 positive87 negative

Customers like the noise level of the bed frame. They mention that it makes no noise, is easy to put together, and is solid.

"...of this product was a breeze with the included tools and there was no squeaking (which was my biggest concern.)..." Read more

"...Easy to set up and lightweight. No more squeaking! Missing a small part but easy customer support is available." Read more

"When I get onto my bed, sometimes it slides and it’s very loud when it makes onto the wood so it gets annoying...." Read more

"...No one should have issues doing so. The foundation is solid, Does not cause any squeaking or shifting...." Read more

294 customers mention234 positive60 negative

Customers like the weight of the bed frame. They mention it's lightweight enough that it'll be easy for one person to assemble. Some say the box spring is really light but strong, and the product is easy to move and transport once assembled.

"...This box is metal and was super light and easy to assemble...." Read more

"...It's sturdy, but also somehow lightweight, which meant I was able to get it on the bed platform by myself. Highly recommended." Read more

"...Easy to set up and lightweight. No more squeaking! Missing a small part but easy customer support is available." Read more

"...Was super easy to move (even without my husband home) and I was able to get it set up by myself...." Read more

677 customers mention403 positive274 negative

Customers are mixed about the fit of the bed frame. Some mention that it fits just right, while others say that the box spring was not big enough to fit. The slats are a tight fit, and the width of the frame is not standard queen.

"...It fits well with the full mattress and bed frame and gives the mattress the support needed." Read more

"It’s easy enough to put together, just a little tedious and the slats are a tight fit...." Read more

"...The quality is very good and sturdy and fits a twin frame perfectly. I plan on putting a air mattress on top of it for visitors...." Read more

"Perfect size . Easy assemble. Comes with all pieces and cover. Quick snap in place box spring love it" Read more

So far, so good! Pretty easy assembly
5 Stars
So far, so good! Pretty easy assembly
We haven’t used it yet, but the assembly was pretty easy. It’s amazing that you can have a box spring delivered to your house and it be in a small box to start. Love the convenience of that. They also include this cool rachet tool that makes it way easier to tighten the screws. Thank you for that!
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Top reviews from the United States

Kate
5.0 out of 5 stars Awesome value.
Reviewed in the United States on March 21, 2024
Size: TwinStyle: New/upgraded with quick assemblyVerified Purchase
I bought this box spring for my day bed. I sleep with a lot of pillows to incline and the mattress and the pillows all sink in one corner so I needed a boxspring to stop it. I love that this is metal so sturdier than the wood ones I've had in the past. The best part? It was so easy to assemble! I love that I didn't need any tools, the directions weren't confusing, and it was easy to maneuver once assembled.
One person found this helpful
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David Trimble
5.0 out of 5 stars Easiest furniture assembly so far!
Reviewed in the United States on April 8, 2024
Size: TwinStyle: New/upgraded with quick assemblyVerified Purchase
Coming from IKEA furniture, I was expecting the worst. Extremely pleasantly surprised with just how easy the build process was. Done in 10 minutes! No screws, no tools, joints snap in! Why don't more manufacturers do this?! Quality parts, a kid can literally assemble, it's that easy. Can't speak to the longevity of the product, time will tell. But I am incredibly impressed so far!
2 people found this helpful
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5.0 out of 5 stars The Box
Reviewed in the United States on May 1, 2024
Size: FullStyle: New/upgraded with quick assemblyVerified Purchase
Love the full size box. This is my first box out of a box. Pun intended. I was a little weary since I couldn't physically see or touch it, but I picked well and the reviews helped a lot. I chose because the standard wood box spring I've been replacing every 5 years or so and they start squeaking because of the springs. This box is metal and was super light and easy to assemble. It fits well with the full mattress and bed frame and gives the mattress the support needed.
One person found this helpful
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Jared
4.0 out of 5 stars Easy setup, slightly frustrating cover
Reviewed in the United States on December 24, 2023
Size: QueenStyle: New/upgraded with quick assemblyVerified Purchase
I purchased a similar item several months ago for my daughter's queen bed, which was cumbersome and very difficult to put together. It took nearly 2 hours!

This was the complete opposite. So easy to build, I was done in less than 20 minutes! The only issue I have with it is, the previous cover zipped completely over the frame, whereas this one just covers the top using elastic, like a fitted bed sheet.

I paid slightly more for the upgraded version and I'm glad I did. It's sturdy, but also somehow lightweight, which meant I was able to get it on the bed platform by myself. Highly recommended.
3 people found this helpful
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danhiro
5.0 out of 5 stars Solid product
Reviewed in the United States on May 5, 2024
Size: FullStyle: New/upgraded with quick assemblyVerified Purchase
Damn this was so easy to assemble. Sturdy and not difficult at all. Love mine
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danhiro
5.0 out of 5 stars Solid product
Reviewed in the United States on May 5, 2024
Damn this was so easy to assemble. Sturdy and not difficult at all. Love mine
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Gil Rodriguez
5.0 out of 5 stars Much better than wooden box springs.
Reviewed in the United States on March 24, 2024
Size: QueenStyle: New/upgraded with quick assemblyVerified Purchase
I was skeptical of metal foundations until the painful process of removing my old wooden box spring through several doorways in my home humbled me. The assembly of this product was a breeze with the included tools and there was no squeaking (which was my biggest concern.) I would definitely recommend this product.
3 people found this helpful
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Karen
5.0 out of 5 stars Exactly what we needed
Reviewed in the United States on April 24, 2024
Size: QueenStyle: New/upgraded with quick assemblyVerified Purchase
We bought this because we didn;t realize we needed a box spring for a bed that we purchased. It was the perfect height and works well with our mattress. It was super easy to assemble. My son and I did it quickly. I recommend this purchase
One person found this helpful
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William C. Cole
3.0 out of 5 stars Good in theory, but hope you don't need a part replaced
Reviewed in the United States on October 24, 2023
Size: Twin XLStyle: New/upgraded with quick assemblyVerified Purchase
The good: box spring replacement seems to be built pretty well, and goes together in a snap, literally. The manufacturer communicated quickly regarding the problem I found with broken parts

The Bad: mine arrived with two of the spring detents broken. These are extremely simple to replace, and I needed the frame quickly, so I contacted the manufacturer hoping that these two items (about the size of a large paper clip) could be sent quickly. At first, the entire part with the broken detents was promised, and then I was told it was unavailable. They then offered to send a entire new unit, but I had to return the old unit. These arrive very tightly packaged, and it would be very difficult to get them back into the box from the replacement set. Not to mention it's already in place under a very heavy mattress since I needed to use it for a guest within a couple of days. I told them to forget it (so wasteful), and the manufacturer then reminded me that it would void the warranty. That sort of soured the whole deal for me. I hope they take my advice to keep some of the springs in stock for replacement...but I doubt it.
9 people found this helpful
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Top reviews from other countries

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Karen Hughes
5.0 out of 5 stars Great value and easy to assemble
Reviewed in Canada on March 8, 2024
Size: KingStyle: OriginalVerified Purchase
This was extremely easy to assemble, it comes with all the tools that you need to make is as simple as possible, could not have been easier from start to finish....(when you don't have "words" with your other half when doing a build it yourself project.....you know it was simple :) !!!)
The boxspring is sturdy and fits perfectly.....not much else you can add as it is literally a boxspring and nothing too exciting!!!
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Samuel Ortega
4.0 out of 5 stars No incluye patas
Reviewed in Mexico on October 23, 2023
Size: QueenStyle: New/upgraded with quick assemblyVerified Purchase
Esta medio engañoso por qué no incluye las patas, fuera de eso cumple con su objetivo
La matraca que incluye se descompuso antes de terminar de apretar los tornillos.
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Samuel Ortega
4.0 out of 5 stars No incluye patas
Reviewed in Mexico on October 23, 2023
Esta medio engañoso por qué no incluye las patas, fuera de eso cumple con su objetivo
La matraca que incluye se descompuso antes de terminar de apretar los tornillos.
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Amazon Customer
5.0 out of 5 stars Nice
Reviewed in Canada on July 18, 2023
Size: Twin XLStyle: New/upgraded with quick assemblyVerified Purchase
Went together easy no problems moving it
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Lexa Kadlecik
5.0 out of 5 stars Life saver
Reviewed in Canada on May 31, 2023
Size: FullStyle: New/upgraded with quick assemblyVerified Purchase
I had been suffering with a squeaky boxspring for years and with the purchase of a new mattress I decided to upgrade the boxspring as well and I am eternally grateful for this product. I swear I laid on my bed after the easiest construction ever (everyone can do this!) and I thought I had gone deaf because of its silence. Thank you!!!!
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Amazon Customer
5.0 out of 5 stars So Easy to Assemble
Reviewed in Canada on April 11, 2023
Size: TwinStyle: New/upgraded with quick assemblyVerified Purchase
Have to hand it to the product engineers on this one. Extremely simple to put together. I wish all products were so simple.
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