Mainstays 7.5 in Quad-Fold Metal Box Spring, Queen
Mainstays 7.5 in Quad-Fold Metal Box Spring, Queen
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Mainstays

Mainstays 7.5 in Quad-Fold Metal Box Spring, Queen

|4,548 ratings
Mainstays 7.5 in Quad-Fold Metal Box Spring, QueenMainstays Quad Fold 7 5 in Queen Metal Box SpringMainstays Half Fold 7 5 in King Metal Box SpringMainstays Quad Fold 7 5 in Full Metal Box Spring
Bed SizeQueen

Key item features

  • Supports up to 1200 lb
  • Measures 78.5 in L x 58.5 in W x 7.5 in H and weighs 45.04 lb
  • Black powder-coated steel frame in a low-profile Queen mattress foundation design
  • Foldable frame that folds flat
  • Includes the frame and a removable zip coverlet with a no-slip fabric surface
  • Assembly required

Specs

Bed size, QueenBox spring type, Mattress FoundationProfile, Low ProfileMaterial, SteelBrand, MainstaysMax load, 1200 lb

About this item

Product details

The Mainstays Quad-Fold Metal Box Spring gives a Queen mattress a low-profile 7.5 in foundation that folds flat before setup. Because the frame folds down, it can be more manageable to carry and store on the way to a bedroom, guest room, or other space. Once it's in place, you unfold it and secure the removable zip coverlet, which has a no-slip fabric surface intended to help keep your mattress from shifting. The foundation arrives with the frame and the coverlet, and assembly is required.
  • Supports up to 1200 lb
  • Measures 78.5 in L x 58.5 in W x 7.5 in H and weighs 45.04 lb
  • Black powder-coated steel frame in a low-profile Queen mattress foundation design
  • Foldable frame that folds flat
  • Includes the frame and a removable zip coverlet with a no-slip fabric surface
  • Assembly required
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Bed size

Queen

Box spring type

Mattress Foundation

Profile

Low Profile

Material

Steel

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

Customer ratings & reviews

4.5 out of 5 stars
stars
4,548 ratings2,587 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars79% (3,575)
  2. 4 stars9% (426)
  3. 3 stars4% (160)
  4. 2 stars2% (100)
  5. 1 star6% (287)
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 2,587 reviews

Jul 19, 2026
Reviewer name: dominic
Top Reviewer
Item details
Bed size: Twin
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Best box spring value online 😄!

The best value for a quality box spring I have ever seen and used. So solid easy to assemble and the price is way too cheap 😭 what a great value Walmart hit the target on this one. You could never get a better value for bed components.

Helpful?6J2OV0840UKL16566155198
Jun 9, 2026
Reviewer name: Dee
Top Reviewer
Item details
Bed size: Twin
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

We were very surprised how sturdy this frame is and how it came already assembled.

Helpful?6J2OV0840UKL16566155198
Oct 10, 2025
Reviewer name: Erin
Item details
Bed size: Queen
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Easy Peasy!

Figuring out how to unfold the box spring was very easy and there was labels to tell you where to place your hands during assembly. The construction of the box spring is well put together and the ensemble is great. The twin size box spring would fit well for your daybed. I purchased the Queen size and I'm definitely satisfied with the value for the money, the overall condition of the product and the sturdiness under the weight of my mattress. Don't hesitate to buy!

Helpful?6J2OV0840UKL16566155198
Current price is $149.00
Price when purchased online
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  • Free 90-day returns
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