Does it work with any mattress?

It is a standard box spring foundation, so it works with most mattresses, including memory foam and hybrid. Check that the added 9 inches of height suits your bed frame.

Does it need a bed frame?

Yes. It is a foundation, not a standalone bed, so it should sit inside a bed frame or on a platform.

How much weight does it hold?

The steel frame is rated to 600 lbs on Twin and Twin XL sizes. Other sizes are not given a separate figure.

Is assembly required?

Yes. It ships unassembled and needs to be put together before use.

Where is the Mainstays Easy Assembly Smart Box Spring cheapest?

At Walmart, for $49.00, as of our latest check.

What do buyers say about the Mainstays Easy Assembly Smart Box Spring?

Rated 4.4 out of 5 from 3,000 ratings.

Mainstays Easy Assembly Smart Box Spring

Best price now

$49.00at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

Mainstays Easy Assembly Smart Box Spring

Best price now

$49.00at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $49.00 at Walmart on Nov 11.

Our take on the Mainstays Easy Assembly Smart Box Spring

The Mainstays Easy Assembly Smart Box Spring is a steel mattress foundation with a jacquard-wrapped frame that folds for storage and transport. It stands 9 inches high, giving a higher profile than a low-profile foundation, and the steel frame is rated to 600 lbs in Twin and Twin XL. It suits shoppers who want a sturdy, foldable base without a traditional wooden box spring. Against wooden box springs it is lighter and easier to move, but it needs assembly and is not adjustable.

Best forRenters who move oftenGuest rooms and spare bedsShoppers replacing a sagging wooden box springStoring a foundation between uses

Pros

Steel frame with a 600 lb capacity on Twin and Twin XL
Folds down for storage and transport
9-inch height gives a higher bed profile
Jacquard fabric cover looks cleaner than bare wood
Powder-coated black finish

Cons

Requires assembly
Not adjustable
Fixed 9-inch height may sit too high for some beds
Steel frame can creak if fasteners loosen

Mainstays Easy Assembly Smart Box Spring prices at every store

WalmartNew
In stock
$49.00Checked Nov 11
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Mainstays Easy Assembly Smart Box Spring price history

Lowest price we've seen: $49.00 on Nov 11 at Walmart. Tracked across 1 store since Nov 11.

What reviewers say

4.4 / 53,000 ratings

Owners rate it well overall, praising the sturdy steel build and the foldable design that makes moving and storage easy. Assembly and occasional creaking are the main complaints.

What people mention

BuildPraisedOwners describe the steel frame as solid and supportive.
AssemblyMixedSome find setup straightforward, others say it takes longer than expected.
FoldabilityPraisedBuyers like that it folds flat for moving and storage.
NoiseCriticisedA few report creaking or squeaking after some use.
HeightPraisedThe 9-inch profile is liked for raising the bed to a comfortable level.

About the Mainstays Easy Assembly Smart Box Spring

The Mainstays Easy Assembly Smart Box Spring is a standard box spring and mattress foundation. It has a steel frame with a powder-coated finish and a solid black jacquard cover. The style is modern.

It is a high-profile foundation with a 9-inch height. The frame folds for storage and transport when not in use. Assembly is required.

Type: Standard box spring, mattress foundation
Sizes: Twin, Twin XL, Full, Queen, California King
Frame material: Steel
Upholstery: Jacquard
Finish: Powder-coated
Color: Black
Pattern: Solid
Style: Modern
Profile: High profile
Height: 9 in
Floor to frame: 9 in
Full dimensions: 53 in wide x 74 in long
Weight capacity: 600 lbs (Twin and Twin XL)
Foldable: Yes
Assembly: Required

Specifications

Size: Queen, California King, Full, Twin, Twin XL
Frame Material: Steel
Upholstery Material: Jacquard
Box Spring: Standard Box Spring
Weight Capacity: 600 lbs (Twin and Twin XL)
Type: Standard Box Spring
Subtype: Mattress Foundation

Questions and answers

Does it work with any mattress?: It is a standard box spring foundation, so it works with most mattresses, including memory foam and hybrid. Check that the added 9 inches of height suits your bed frame.
Does it need a bed frame?: Yes. It is a foundation, not a standalone bed, so it should sit inside a bed frame or on a platform.
How much weight does it hold?: The steel frame is rated to 600 lbs on Twin and Twin XL sizes. Other sizes are not given a separate figure.
Can it be folded for storage?: Yes. The frame folds for storage and transport when not in use.
Is assembly required?: Yes. It ships unassembled and needs to be put together before use.
Where is the Mainstays Easy Assembly Smart Box Spring cheapest?: At Walmart, for $49.00, as of our latest check.
What do buyers say about the Mainstays Easy Assembly Smart Box Spring?: Rated 4.4 out of 5 from 3,000 ratings.