ZINUS 9 Inch SmartBase Steel Mattress Foundation - No Box Spring Needed

By: Zinus

For a mattress foundation that offers comfort, customer support, durability, and easy maintenance, the Zinus 9 Inch Metal Smart Box Spring is the perfect choice. This Twin-sized box spring features a steel interior frame with a knitted polyester cover for long-lasting durability. It's also incredibly sturdy, with a maximum weight capacity of 350 lbs. Plus, assembly and disassembly are a breeze, making this box spring an ideal choice for your bedroom. Visit the Zinus Store and discover why the ZINUS 9 Inch Metal Smart Box Spring is one of the best Box Springs available.

Key Features:

This heavy-duty bed frame is designed to support a maximum weight capacity of up to 500 lbs. It is made from a strong steel frame for superior durability, and features easy assembly for convenience. The standard steel box spring mattress foundation provides optimal support for your mattress and ensures a comfortable night's sleep.
95
B2B Rating
3 reviews

Review rating details

Value for money
99
Size
99
Quality of material
99
Packaging
99
Overall satisfaction
99
Easy to maintain
99
Durability
99
Customer support
99
Comfort
99

Pros and Cons

Pros
  • Steel interior frame with knitted polyester cover offers long lasting durability
  • Sturdy frame can hold up to a maximum weight capacity of 350 lbs
  • Easy to assemble and disassemble
Cons
  • Heavier than standard box spring

Details of ZINUS 9 Inch SmartBase Steel Mattress Foundation - No Box Spring Needed

  • Product Dimensions: ‎74 x 38 x 9 inches
  • Is Discontinued By Manufacturer: ‎No
  • ASIN: B00NPVCNS8
  • Assembled Length: ‎38 inches
  • Date First Available: September 19, 2014
  • Item Weight: ‎26.2 pounds
  • Assembled Width: ‎74 inches
  • Item model number: ‎OLB-ABS-9T
  • Assembled Height: ‎9 inches
  • Customer Reviews: 4.5/5 stars of 29,568 ratings
  • Best Sellers Rank: #2,481 in Home & Kitchen #1 in Box Springs

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Comments

Chris H.: I would give this a 5 Star review IF the company would have marked the pieces with the letters that correspond to the pieces, but none of them are marked. You have to determine the pieces by the photos they attach. A bit confusing at first, but once you have that figured out, it is quite easy to assemble! And I've been using it and it seems very sturdy, which is what I wanted!

United States on Oct 29, 2023

Rebecca Avery Rodriguez: I bought a bed frame on amazon that came with those flimsy wooden slats. Most of them broke within the first year so I bought this to be a better support base for my mattress. I wanted a really tall bed so 9" base plus my 15" mattress was the perfect extra tall height. The assembly is so easy and intuitive it only took me 15 mins by myself(26F) to have it fully assembled and on the bed frame. They really have some awesome innovation to make this set up so easy. The frame itself is so incredibly sturdy, being made with good quality metal and the joints are a fantastic hard plastic composite. 10/10 highly recommend.

United States on Oct 19, 2023

Caroline: Assemble can be super easy if the metal sticks are 100% aligned, but that wasn’t the case for me. I assembled it by myself and it took me an extra hour (of 3h total) to assemble this because a couple of the sticks wouldn’t align correctly so I had to put a lot of strenght to make them fit.

Overall, once assembled the frame is pretty sturdy and fulfills its purpose.

Delivery could have been better, box came a bit ripped and I was scared it was going to open on my way to my apartment (it is quite heavy, ideally 2 people would carry it with no problem. 1 person can carry it with a bit of effort but it’s super possible)

United States on Oct 06, 2023

Sabrina H: It’s PERFECT!
1. IT GOT HERE 3 DAYS EARLY! It was an amazing surprise

2. I’m very bad with directions that are complication due to my ADD so building things by myself is difficult. I’m also quite tiny and weak due to other ailments HOWEVER this item was so incredibly easy to assemble I was able to do it ALL BY MYSELF!! The parts weren’t overly large and once assembled it was easy for me to put on the bed all by myself too. The instructions were phenomenal too. Easy and intuitive

I felt like a super hero.

So if I can build this in 30 or so minutes I’m sure you can assemble it easily too!!

It’s also holding up nicely!:)

United States on Oct 01, 2023

Tara: this is a great concept but hard to put together because the cover of the frame zips and the zipper broke when we tried to do it up! I couldn't sent it back so have been just dealing with it. The frame itself is sturdy overall though.

Canada on Sep 28, 2023

Jessica: Bought this for my son’s twin bed. We went from a loft bed and needed a box spring so went with this one, so glad we did! It’s sturdy enough that I feel like if he jumps on his bed it won’t break or anything like wooden box springs can. Super easy to put it together, took me about 20 mins and that was with two kids crawling all over me. The screws were easy to put in and it came with three tools that allow you to pick what’s easiest for you. The directions are pretty simple pictures that show which part goes to which, but it doesn’t take a lot to figure it out. It’s not heavy for meting all metal and the top cover fits snug, it also fits perfecting it a twin frame. There’s also no creak noise when my son got into bed so that’s nice too. Oh and I didn’t have to wash the cover because there was no smell so that was also convenient! Over all 10/10! Might even get one for my cali king, now that I know it’s easy to put together and way more sturdy then the wooden box springs. Definitely going to recommend!

United States on Sep 18, 2023

Amazon Customer: Easy to install . Seams strong. Time will tell how strong it is.

Canada on Jul 15, 2023

TheFaceless: Seriously, Get one of these, it will prevent your mattress from getting mouldy

Canada on Jul 15, 2023

Andrew Earl: Product sturdy and light

Canada on Jul 06, 2023

Jovan Milosevic: As most reviewers have said - comes in a very compact package, easy to assemble, good quality.

The only problem is that there are no springs. This is not a “box spring”. This is just a box. It performs accordingly.

Canada on Feb 03, 2023

ZINUS 9 Inch SmartBase Steel Mattress Foundation - No Box Spring Needed Zinus No-Assembly Metal Box Spring - Quickly Set Up & Enjoy Comfort ZINUS 7 Inch Smart Steel Foundation Box Spring for Mattress Support
ZINUS 9 Inch SmartBase Steel Mattress Foundation - No Box Spring Needed Zinus No-Assembly Metal Box Spring - Quickly Set Up & Enjoy Comfort ZINUS 7 Inch Smart Steel Foundation Box Spring for Mattress Support
B2B Rating
95
96
94
Sale off $46 OFF $4 OFF
Total Reviews 3 reviews 236 reviews 739 reviews
Product Dimensions ‎74 x 38 x 9 inches 74 x 53 x 9 inches ‎74"L x 38"W x 7"H
Is Discontinued By Manufacturer ‎No No ‎No
ASIN B00NPVCNS8 B00R6OX5MS B01N2YPDQX
Assembled Length ‎38 inches
Date First Available September 19, 2014 December 29, 2016
Item Weight ‎26.2 pounds 35.3 pounds ‎25.7 pounds
Assembled Width ‎74 inches
Item model number ‎OLB-ABS-9T SM-SC-BIFD-9F ‎OLB-ABS-7T
Assembled Height ‎9 inches
Customer Reviews 4.5/5 stars of 29,568 ratings 4.7/5 stars of 3,554 ratings 4.5/5 stars of 17,541 ratings
Best Sellers Rank #2,481 in Home & Kitchen #1 in Box Springs #33,539 in Home & Kitchen #16 in Box Springs #10,979 in Home & Kitchen #7 in Box Springs
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