ZINUS 9 Inch Metal Smart Box Spring, Mattress Foundation, Strong Metal Frame, Easy Assembly, Queen
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Availability:
In Stock.
Arrives
Saturday, Jun 28
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Size: Queen
Style: Box Spring (Original)
Features
- Steel Interior Frame With Knitted Polyester Cover
- 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.
- DURABLY ENGINEERED - Durable steel is used to construct the inside framework of this foundation; Twin size supports a maximum weight capacity of 350 pounds, while all other sizes can support up to 700 pounds
- 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
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.
Brand: Zinus
Size: Queen
Product Dimensions: 79"L x 59.5"W x 9"Th
Top Style: Tight Top
Cover Material: Polyester
Number of Layers: 2
Fill Material: Polyester
Weight Limit: 700 Pounds
Special Feature: Quick Assembly
Color: Grey
Product Dimensions: 79 x 59.5 x 9 inches
Item Weight: 40.7 pounds
Manufacturer: Zinus - DROPSHIP
Country of Origin: China
Item model number: 139533P
Is Discontinued By Manufacturer: No
Fabric Type: Steel Interior Frame With Knitted Polyester Cover
Refill: Polyester
Care instructions: Wipe with Damp Cloth
Assembly required: Yes
Warranty Description: Worry-free 5 year limited warranty included.
Batteries required: No
Included Components: Box Spring, Instruction Sheet
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Jun 28
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: King
Style: Box Spring (Original)
Loved the fact that it arrived in a compact box making it very manageable to carry through the house and into the bedroom as I have a very small and constricted floor plan. Upon opening the box it seemed a bit overwhelming but once I looked at the instructions and the diagram of the labeling of the pieces I was very impressed with how easy it was to lay out and put together. All the hardware fit smoothly and was easy to put together using only the tools that were supplied. That in itself was a touch of class, to be provided those items and not have to find and size up my own tools. The quality of the hardware as well as the packaging was well thought out and I appreciated the extra nuts and bolts. I actually used the extra nuts to double nut the two long bolts that secured the middle cross members together in the center of the box to ensure they don't work their way loose over time. The nuts and bolts looked to be well made and the shouldered and serated locking surfaces of the nuts weren't lost on me. That was a great selection of fasteners. The bolts were made very well and the heads did not ring out or become deformed from being tightened and kept their integrity and shape so as to be removed for disassembley in the future if needed. All the frame work pieces had a very nice finish to them appearing to be powder coated. The final addition of the frame cover was an added item that enhanced the overall quality and appearance of the total package once it was fully assembled. Total assembly time was no more than an hour by myself and being put together on and inside an existing raised oak bedframe with large headboards and side rails. Very pleased with this excellent product and would most definitely buy again and recommend to others looking for a similar item to fit their needs and lifestyle.
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Reviewed in the United States on June 8, 2025 by Dean W. Edwards Jr.
Size: King
Style: Box Spring (Original)
We checked out some box springs to replace our busted wooden ones. The price has definitely gone up substantially on them. We decided to try out the metal box springs hoping for longer lasting and more sturdiness. The product says is can hold up to 750 pounds. My husband and teen son assembled the boxspring together. It came with all the necessary tools. Would say the only thing we really had a problem with is that the middle shafts are hollow and we had some bugs in ours so we beat them down into the bathtub and made sure that they weren’t in any more of the metal. I can’t really see how a warehouse could have this 100% under control to not have this happen so we do not blame the company for anything. Just FYI for you to check before you assemble it. My husband and son were having a bit of trouble getting the cover on until I came up and helped them out. Luckily there’s a little flap that says top so you know exactly which way to put it on. It was easy putting it on after that. We’ve had it for about two months now and it works great. Great product for the price in a time of outrageous bedding prices.
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Reviewed in the United States on June 15, 2025 by Dee Ann Mokhtari
Size: Queen
Style: Box Spring (New Easy Assembly)
I was confused when the box was so small, but as it turns out once assembled it makes a great box spring support. After several months of using (queen size bed) I had found that some of the metal cross supports do pop up/pop out of track, and after putting them back a couple of times I uncovered the fitted covering and popped out and glued all the supports down with a dab of industrial adhesive. (something like a quick drying epoxy) That has resolved the issue. I would suggest using some similar adhesive when you build it the first time. Just to avoid the headache of having to take the bed back down. And before you think someone was jumping or bouncing on the bed too much, no, I can assure you this was pretty typical sleeping with some tossing and turning.
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Reviewed in the United States on June 10, 2025 by Daniel
Size: Full
Style: Box Spring (Original)
First of all, I was pleasantly surprised with the quality of this box spring. Only one night sleeping on it but no squeaks so far. I should add that I will update this review if any problem occurs. Before I ordered this, I read through all of the questions and answers which took a couple of hours. So glad that I did as several customers mentioned the cover and problems putting it on. It is a very tight fit but if I can do it at my age, anyone can do it. A suggestion to the manufacturer would be to add perhaps 1/4 to 1/2 inch more fabric and it would not be so difficult to place over the box spring. I also watched the video twice before I ordered this and that was easy to follow. Four of the pieces were labeled with a yellow sticky that said 'up' which was most useful. My other suggestion would be to label all of the pieces with 'A, B, C, D etc. which would have decreased my assembly time by at least one hour. I did go back and watch the video again while I was assembling. Total time for me to get the pieces in the right order, double-check the placement, tightening of the hardware, etc, was 4 hours. After I got the box spring assembled, I went around each piece and put pressure on each one, to make sure things were as tight as I could get them. I am visually impaired so perhaps that contributed to the amount of time it took me to assemble it. At my age, I am thinking that perhaps I should have had someone make sure I had everything tightened well. If anything loosens up over time, will have someone help tighten it for me. All in all, so far and so good. The mattress I have on top is really heavy and as I stated previously, the box spring has no squeaks and appears to be most durable. In other words, no movement of the box spring. Update to follow if anything should occur. Edit on 26 MAR 2019... Have been using this for 17 months now... No squeaks, absolutely zero problems! Still as satisfied as the day i first reviewed this in October of 2017. And, my recommendation is still that I highly recommend this box spring. Update on 10 OCT 2019.... The 2 year anniversary of this box spring and once again there are no squeaks and zero problems. Still highly recommend this box spring~ Update as of 30 JAN 2021...Absolutely still in perfect condition. Was going to increase the star rating to 5 but don't dare to change it. Truly outstanding and most highly recommend this item for everyone that wants a sturdy and long-lasting box spring. Could not be any more pleased with a product... Most highly recommend...
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Reviewed in the United States on October 14, 2017 by Serenity...