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Mainstays

Mainstays 9" Easy Assembly Smart Box Spring, Twin

Average Rating:out of 5 stars
Walmart # 576281079
$77.50$77.50
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Free delivery

Arrives by Mon, Sep 28

Free pickup Mon, Sep 28

Ships to San Leandro, 1919 Davis St

Sold & shipped byWalmart
Gifting note:Ships in the manufacturer's original packaging, which may reveal the contents.

Product Highlights

  • Ultra-sturdy support for any mattress
  • Easily folds up for storage and transport
  • Powder-coated steel construction
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Set yourself up for a great night's sleep with the Mainstays 9" White Jacquard Smart Box Spring. Offers the look and functionality of a traditional box spring but made from steel providing ultra-sturdy support for any innerspring, memory foam or combination mattress, features a 100% polyester jacquard covering that prevents shifting and is machine washable. This innovative box spring is designed to easily fold up for convenient storage and transport when not in use. The Mainstays 9" White Jacquard Smart Box Spring sets up in seconds with no tools required and is available in Twin, Twin XL, Full, Queen, King, and California King sizes to create the perfect sleeping platform in any bedroom.

About This Item

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Features
Set yourself up for a great night's sleep with the Mainstays 9" White Jacquard Smart Box Spring. Offers the look and functionality of a traditional box spring but made from steel providing ultra-sturdy support for any innerspring, memory foam or combination mattress, features a 100% polyester jacquard covering that prevents shifting and is machine washable. This innovative box spring is designed to easily fold up for convenient storage and transport when not in use. The Mainstays 9" White Jacquard Smart Box Spring sets up in seconds with no tools required and is available in Twin, Twin XL, Full, Queen, King, and California King sizes to create the perfect sleeping platform in any bedroom.

Mainstays 9" White Jacquard Smart Box Spring

  • Sets up easily in seconds
  • An innovative design allows the box spring to easily fold up for storage and transport when not in use
  • Provides ultra-sturdy support for any innerspring, memory foam, or combination mattress
  • Features a 100% polyester jacquard cover
  • Constructed with a durable powder coated steel frame for a long life of reliable use
  • Easy to assemble with no tools required
  • Available in Twin, Twin XL, Full, Queen, King, and California King sizes
  • Twin and Twin XL can support up to 600 lbs. total weight capacity
  • Full, Queen, King, and California King can support up to 1200 lbs. total weight capacity
  • Mattresses and beds sold separately
  • Please see our assortment of mattresses

Assembled Product Dimensions:

  • Twin dimensions: 74" x 38" x 9"; 26.3 lbs.
  • Twin XL dimensions: 79" x 38" x 9"; 26.8 lbs.
  • Full dimensions: 74" x 53" x 9"; 36.9 lbs.
  • Queen dimensions: 79" x 59.5" x 9"; 40.23 lbs.
  • King dimensions: 79" x 75.5" x 9"; 48.04 lbs.
  • California King dimensions: 83" x 71" x 9"; 46.74 lbs.

Shipping Product Dimensions:

  • Twin shipping dimensions: 41.3" x 11.2" x 10"; 30.5 lbs.
  • Twin XL shipping dimensions: 42.1" x 10.8" x 10"; 31.1 lbs.
  • Full shipping dimensions: 56.3" x 11.2" x 10"; 42.3 lbs.
  • Queen shipping dimensions: 62.4" x 11.2" x 10"; 45.84 lbs.
  • King shipping dimensions: 78.5" x 11.2" x 10"; 54.06 lbs.
  • California King shipping dimensions: 74" x 11.2" x 10"; 53.13 lbs.

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Customer Reviews

Average Rating:(4.6)out of 5 stars
5 stars
726
4 stars
112
3 stars
38
2 stars
14
1 star
34
Most helpful positive review
1 customers found this helpful
Average Rating:(5.0)out of 5 stars
A monkey such as myself could put this together!!
Easiest thing i have ever put together! It was great not needing hubby or any tools for once! Everything tightly clicks in and zips up. Super sturdy, and really great price! I never write reviews but this was pretty sweet i couldn't pass up not letting others know esp because i did read reviews before purchasing this time. 10/10 would recommend!
Most helpful negative review
Average Rating:(1.0)out of 5 stars
I cant put the cover on. Probably just gonna buy a bed skirt and put on it.:/
Most helpful positive review
1 customers found this helpful
Average Rating:(5.0)out of 5 stars
A monkey such as myself could put this together!!
Easiest thing i have ever put together! It was great not needing hubby or any tools for once! Everything tightly clicks in and zips up. Super sturdy, and really great price! I never write reviews but this was pretty sweet i couldn't pass up not letting others know esp because i did read reviews before purchasing this time. 10/10 would recommend!
Most helpful negative review
Average Rating:(1.0)out of 5 stars
I cant put the cover on. Probably just gonna buy a bed skirt and put on it.:/
Easiest thing i have ever put together! It was great not needing hubby or any tools for once! Everything tightly clicks in and zips up. Super sturdy, and really great price! I never write reviews but this was pretty sweet i couldn't pass up not letting others know esp because i did read reviews before purchasing this time. 10/10 would recommend!
I cant put the cover on. Probably just gonna buy a bed skirt and put on it.:/

Frequent mentions

1-10 of 924 reviews
Average Rating:(5.0)out of 5 stars

A monkey such as myself could put this together!!

Verified purchase

Easiest thing i have ever put together! It was great not needing hubby or any tools for once! Everything tightly clicks in and zips up. Super sturdy, and really great price! I never write reviews but this was pretty sweet i couldn't pass up not letting others know esp because i did read reviews before purchasing this time. 10/10 would recommend!

Helpful?
Average Rating:(5.0)out of 5 stars

Pop-up, easy to assemble, best for small stairs

Verified purchase

This doesnt come in one piece! Im not sure if its in the description or not that is needs to be assembled. Either way, it was better it wasnt one large piece. For this reason Ive been able to recommend it to other people with small or narrow stair cases. Really easy to set up. I did it myself late one evening in a short amount of time. If I can do it, anyone can. Adds a lot of height.

Helpful?
Average Rating:(5.0)out of 5 stars

I'm not bob the builder but i got the job done !!

Verified purchase

Well i had to get a new box spring because my previous one would not fit up the steps in my new construction home because of the angling So when it arrived i took it out the box and literally left it in my living room for two weeks because i thought i needed someone to help me put it together. Wrong!!! One day i got bored loaded it upstairs and read how simple the directions was and did within 15 minutes !!!! I'm so happy with my purchase it was easy and worth it

Helpful?
Average Rating:(5.0)out of 5 stars

Worth the money and the buy

Verified purchase

I thought this would be complicated to put together so it sat in my living room for 2 weeks without me even touching it then finally i was like let me look at the directions and try ...a 8 year old could put it together !!! It took me 30 minutes and VIOLA !!! its up and In use working effortlessly

Helpful?
Average Rating:(5.0)out of 5 stars

amazing product!!

Verified purchase

I love this box spring. we got the queen. I didnt even need the directions it was so simple and self explanatory. not many pieces you have to put together and no screwdriver needed! you just simply fold out the big outer walls, add the middle support that slides in place. slide the slats in place on top, put your cover on. and done. perfect for moving up and down stairs in our compact apartment with the easy fold up. what a perfect product!!

Helpful?
Average Rating:(5.0)out of 5 stars

Perfect low profile foundation for kids bed!

Verified purchase

If you have a child with a full bed thats high off the ground this low profile foundation is perfect! Simple to put together and a great price! My son needed a step stool with our previous frame so we searched for a lower option!

Helpful?
Average Rating:(5.0)out of 5 stars

If you're single and looking, this one is for you!

Arrived a few days earlier than expected! Box was not damaged or heavy at all for being a metal frame. All the parts were there. Super easy to set up by myself which is definitely a plus when you're single. So far I feel this was a great purchase and it supports my heavy @55 12” hybrid mattress very well. I'm loving the height it has given my bed! Feeling like it's a queen fit for a Queen. Lol. Now I just need a bed skirt.

Helpful?
Average Rating:(5.0)out of 5 stars

Queen box spring

Verified purchase

Easy to assemble and durable.

Helpful?
Average Rating:(4.0)out of 5 stars

Good!

Verified purchase

We've had this for more than a week. It's not noisy. of course it's new but hopefully it doesn't become noisy overtime. It probably took about 15 mins to fix. but it had come a bit apart from the white cover.

Helpful?
Average Rating:(4.0)out of 5 stars
Verified purchase

Setup was a breeze directions were easy to follow couldnt figure out which direction it was supposed to face but oh well and wish it was thicker but itll do will recommend

Helpful?

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If you would like to share feedback with us about pricing, delivery or other customer service issues, please contact customer service directly.
1-3 of 13 questions
by AzTazmanMarch 29, 2020


1. Approximately 6.5" between the bars
by RachAnn
Helpful?
2. 6.5" between the bars
by RachAnn
Helpful?
2 Answers
Last answer: August 11, 2020

by mike0009December 4, 2019


1. No, it does not have a leg.
by CommunityAnswer
Helpful?
1 Answer
Last answer: December 6, 2019

by WonderingApril 22, 2020


1. You cannot attach a head board to this box spring, you would have to purchase a bed frame and attach the headboard to frame and then place this box spring on top of bed frame. Thank you ComRep
by RachAnn
Helpful?
1 Answer
Last answer: May 28, 2020

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Product warranty:
Warranty Information:Limited Five (5) Year Warranty, Warranty available to original purchaser only. Proof of purchase is required. This warranty is your sole remedy for product defects only and does not cover damage due to mishandling, misuse, or abuse. The defects include circumstances where the frame is broken under normal use and no longer performs its function. The manufacturer is not responsible for incidental or consequential damages. This warranty gives you specific legal rights and you may also have other rights which vary from state to state. Our product is designed and manufactured to meet the highest quality standards. In the event that you have assembly questions, or parts are missing or damaged, please let us know before you decide to return your product to the store. Please contact customer service directly at: Email: CustomerService@gesin-cn.com Service Hours: Central Standard Time Monday - Friday: 9:00am - 4:00pm 1-800-681-0084 Thank you for purchasing our products. Inno-Sports Co., Ltd
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