Mainstays 7" Queen Metal Box Spring, High Profile, Easy Assembly, No-Tools Needed, Mattress & Bed Frame Not Included

Mainstays 7" Queen Metal Box Spring, High Profile, Easy Assembly, No-Tools Needed, Mattress & Bed Frame Not Included

3,800 ratings

Key item features

  • Queen size measures 79 in L x 59 in W x 7 in H, with an assembled weight of 39.15 lb
  • Powder-coated steel frame with a 100% polyester jacquard cover
  • Foldable design for easier handling, moving, and storage
  • No-tools assembly; assembly is required
  • Queen size supports up to 1200 lb total
  • Compatible with innerspring, memory foam, and combination mattresses
  • Includes the frame and coverlet; mattress and bed frame are sold separately

Specs

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

About this item

Product details

Give your queen mattress a straightforward base with this Mainstays 7-inch foldable mattress foundation. Its standard 7-inch profile helps you plan the overall height of your bed setup, while the foldable steel-frame design makes the foundation easier to carry, move, and store when you need to tuck it away. No-tools assembly keeps setup simple, though assembly is still required to get it ready for use. It works with innerspring, memory foam, and combination mattresses, so it suits a range of sleep setups. Keep in mind that the mattress and bed frame are sold separately.
  • Queen size measures 79 in L x 59 in W x 7 in H, with an assembled weight of 39.15 lb
  • Powder-coated steel frame with a 100% polyester jacquard cover
  • Foldable design for easier handling, moving, and storage
  • No-tools assembly; assembly is required
  • Queen size supports up to 1200 lb total
  • Compatible with innerspring, memory foam, and combination mattresses
  • Includes the frame and coverlet; mattress and bed frame are sold separately
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

Standard Profile

Material

Steel

Warranty

Warranty information

Limited Five (5) Year 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. Your complete satisfaction is our number 1 priority. 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. Our customer service department would appreciate the opportunity to provide information regarding assembly and to provide and necessary parts.

Customer ratings & reviews

4.6 out of 5 stars
stars
3,800 ratings1,857 reviews
Includes global ratings and reviews
How item rating is calculated

Reviews summary

Pros

  • : A single person can snap the frame together in minutes.
  • : The frame holds weight securely and assembles quickly.
  • : The product delivers strong value for its quality.
  • : The mattress provides a soft sleeping surface with occasional firmness.
  • : Assembly directions use illustrations to enable quick setup.

Neutral

  • : Product fits snugly on frames but can be too small to zip.
Generated by AI
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 1,857 reviews

Nov 1, 2025
Reviewer name: anonymous
Item details
Bed size: Twin
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

So simple to assemble !

What a terrific way to get a box spring %26 not have to make a trip to the bed stores! Amazingly easy to assemble, very sturdy, practical, %26 functional.

Helpful?3S8X0JIVXRFK16300068413
Jul 3, 2026
Reviewer name: wayne
Top Reviewer
Item details
Bed size: Twin
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great addition

I wish I would of ordered this sooner. Very easy to put together and it fit my mattress perfectly

Helpful?3S8X0JIVXRFK16300068413
Jan 17, 2026
Reviewer name: Toni
Top Reviewer
Item details
Bed size: Twin
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

nice. adds good support and height

i like this. it came in parts and required assembly. my teenage son put it together easily. adds lift and support

Helpful?3S8X0JIVXRFK16300068413
Current price is $119.00
Price when purchased online
Selected option out of stock
More options available

How do you want your item?

How do you want your item?
Out of stock