Name: Mainstays 9" Cal King High Profile Easy Assembly Smart Metal Box Spring
Brand: Mainstays
SKU: 6000200331761
Price: 110 CAD
Availability: OutOfStock
Rating: 4.4 (196 reviews)

Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Try it free

Glass WEB: Walmart + "Expired FT Eligible, Non Member" PIP Banner Wk 19 2025

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

You'll choose a plan at checkout.

#515357

I want delivery savings with Delivery Pass

#0071dc

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW Bill29Compliance Wed Sep 30 2026 9:44 AM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

I want shipping & delivery savings with

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

NEW InternationalShipping Mon May 18 2026 1:02 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

Key item features

NEW ItemSnapshotHighlightsModule Fri Aug 28 2026 6:53 PM EDT

Specifications

NEW ItemSnapshotSpecificationModule Fri Sep 18 2026 1:18 PM EDT

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

Shop Confidently

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

True

dWeb: L1/L2- Comparison Chart- WK 07, 2026

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

Mainstays 9" Cal King High Profile Easy Assembly Smart Metal Box Spring

<ul><li><strong>Quick Setup</strong>: Sets up easily in seconds with no tools required for assembly.</li><li><strong>Foldable Design</strong>: Allows the box spring to easily fold up for storage and transport when not in use.</li><li><strong>Sturdy Mattress Support</strong>: Provides ultra-sturdy support for any innerspring, memory foam, or combination mattress.</li><li><strong>Durable Construction</strong>: Constructed with a powder coated steel frame and features a 100% polyester jacquard cover.</li><li><strong>High Weight Capacity</strong>: California King size can support up to 1200 lbs. total weight capacity.</li></ul>

Foldable<br><ul><li>Mainstays 9" White Jacquard Smart Box Spring.</li><li>Sets up easily in seconds.</li><li>An innovative design allows the box spring to easily fold up for storage and transport when not in use.</li><li>Provides ultra-sturdy support for any innerspring, memory foam, or combination mattress.</li><li>Features a 100% polyester jacquard cover.</li><li>• 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. • California King can support up to 1200 lbs. total weight capacity. • California King dimensions: 83" x 71" x 9"; 46.74 lbs.. • This item ships in one large box that may not fit into a standard-sized vehicle. Please make sure you have a large car or truck for store pickup. • California King shipping dimensions: 74" x 11.2" x 10"; 53.13 lbs..</li><li>Mattresses and beds sold separately</li></ul>

Bed Size

Box Spring Type

Profile

Material

Brand

Maximum Load Weight

Features

Assembled Product Dimensions (L x W x H)

Is Assembly Required

Colour

Items Included

Split Box Spring

Assembled Product Weight

Set yourself up for a great night's sleep with the Mainstays 9" White Jacquard Smart Box Spring. This innovative box spring is designed to easily fold up for convenient storage and transport when not in use. Providing ultra-sturdy support for any innerspring, memory foam, or combination mattress, the box spring features 100% polyester jacquard covering, durable powder coated steel for a long life of reliable use. The Mainstays 9" White Jacquard Smart Box Spring sets up in seconds and is available in Twin, Twin XL, Full, Queen, King, and California King sizes to create the perfect sleeping platform in any bedroom.

Manufacturer Part Number

Assembly Instructions

Universal Product Code (UPC check)

Walmart Item #

Mainstays Easy Assembly Smart Metal Box Spring

<!DOCTYPE html>
<html>
   <head>
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <link
         rel="stylesheet"
         href="https://unpkg.com/tachyons@4.12.0/css/tachyons.min.css"
         />
   </head>
   <body>
      <div class="flex flex-column justify-center w-100 ph3 normal lh-copy pt1">
            <div class="tc">
               <img src="https://i5.walmartimages.com/dfw/8822aef6-7abe/k2-_f4ee767f-a90a-4f70-be39-71e5d7b238a0.v1.jpg">
               <h3>4 equal payments</h3>
               <h4 class="gray">Buy what you love and split the cost. It's that easy. </h4>
            </div>
            <ul>
            <b>
               <li>Add item(s) to your cart.</li>
               <li>
                  Add items to checkout and choose 
                  <image height="14" width="auto" src="https://i5.walmartimages.com/dfw/8822aef6-7abe/k2-_f4ee767f-a90a-4f70-be39-71e5d7b238a0.v1.jpg"></image>
               </li>
               <li>Enter your debit or credit card information. </li>
               <li>Your first payment is taken when the order is processed, and the remaining 3 are automatically taken every two weeks.</li>
            </b>
            </ul>
            <p class="gray">Please note that a higher initial payment may be required for some purchases. Pay later in 4 <a href="https://cdn.klarna.com/1.0/shared/content/legal/terms/0/en_ca/paylaterin4" target="_blank">terms</a> available here. For Quebec residents, these Pay Later 4 <a href="https://cdn.klarna.com/1.0/shared/content/legal/terms/0/en_ca/paylaterin4_quebec" target="_blank">terms</a> are applicable. </p>
      </div>
   </body>
</html>

Twin-XL

King

California King

Value For Money

Ease Of Assembly

Sturdiness

Size Compatibility

Build Quality

Cover Fit

Size

Whoever came up with this idea for the easy assembly boxspring is a genius. Box springs are one of the hardest things to move since they do not bend in are difficult to get up a stairwell. And this being made of metal is more sturdy than a wooden framed one this will be very easy to disassemble and fold up when I move and transport to the next home.  I wish I thought of this myself.  Pure genius!

Easy Assembly Box Spring

walmart.com

Very easy to assemble and sturdy . Bought for my king size bed and still in great shape after 5 months!!! Great price!!!

Perfect!

I have arthritis in my feet and knees.  We actually bought this to raise the height of our bed to make it easier for me to stand up. 
We were told when we bought our very expensive memory foam mattress 2 years ago that it didn't require a box spring.  This has brought new memory to our mattress!   
I am amazed at how comfortable my mattress is now!  I can actually wake up without aches and pains!

Very easy to assemble and it doesn't squeak

It seems very sturdy and the best part, it was easy to put together. No weird smells. The cover didn't really even smell, which is impressive. The cover was a little tricky to get on, but not too bad. Overally extremely pleased with this purchase.

Very easy assembly, quality item.

This probably took 5 minutes to put together, it's super sturdy, and great quality to be honest!! I was shocked at how simple the set up was. I was nervous about the quality of the metal but it's honestly so sturdy! Great value! We got it on sale and I couldn't be happier.

Awesome!

It's cool but a little confusing because of the top (no information or description on that bottom mattress), whenever I put the mattress in it collapsed I was like what's wrong with it ? So I had to flip it over and try it again..and now it holds up good.

Fairly easy to assemble but the cover that comes with it does not fit.

we ordered this box springs October 17, 2025 and it didn't even last a year before it started breaking.  Normal wear and every time you get on the bed you hear the bars falling where it broke.  i will nev