Mainstays 12" Adjustable Metal Platform Bed Frame, White, Twin - King
Mainstays 12" Adjustable Metal Platform Bed Frame, White, Twin - King
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Mainstays

Mainstays 12" Adjustable Metal Platform Bed Frame, White, Twin - King

4.5 stars out of 795 reviews
(4.5)|
795 ratings
Mainstays 12" Adjustable Metal Platform Bed Frame, White, Twin - KingMainstays 12 Adjustable Metal Platform Bed Frame White Twin KingMainstays 12 Adjustable Twin King Metal Bed Frame Black Box Spring Required

Key item features

  • Adjustable Sizes: Fits Twin, Double, Queen, and King sizes with easy press and pull adjustment.
  • Sturdy Support: Provides ultra-sturdy support for any box spring and mattress, with a weight capacity of 1200 lbs.
  • Durable Construction: Made from powder-coated steel to withstand wear and tear.
  • Easy Assembly: Ultra-easy assembly with included instructions, requiring no tools.
  • Under-Bed Storage: Offers 11 inches of under-bed storage space for blankets, clothes, or toys.
  • Floor Protection: Designed with capped feet to prevent floor damage and recessed feet to reduce toe stubbing.
  • Shipping Details: Ships in one box with dimensions of 37.40" x 16.34" x 5.91" and a shipping weight of 31.31 lbs.
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Customer ratings & reviews

4.5 out of 5 stars
stars795 ratings348 reviews
How item rating is calculated
  1. 5 stars79% (630)
  2. 4 stars8% (66)
  3. 3 stars3% (25)
  4. 2 stars3% (24)
  5. 1 star6% (50)

Reviews summary

Pros
  • : Features a simple process with minimal pieces.
  • : Made with durable material to support heavy loads.
  • : Offers great value at this cost.
  • : Provides space underneath for storing items.
  • : Frame's height accommodates under-bed storage and fits various bed sizes.
Neutral
  • : Offers sturdy base, but compatibility issues with some mattresses.
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Showing 1-3 of 348 reviews

Jan 24, 2026
Joyce
Top Reviewer
Walmart Associate
Item details
Color: Black
5 out of 5 stars review

Verified Purchase

Sturdy frame

This is my third bed frame from this brand. They are sturdy, reliable, and easy to assemble. The adjustable design fits multiple mattress sizes, and the strong metal construction provides solid support. Its simple black finish looks clean and works well in any bedroom. It's a practical, affordable frame that gets the job done.

Helpful?2KTL0896GWDC756072575
Aug 29, 2025
Jennifer
Item details
Color: Black
5 out of 5 stars review

Verified Purchase

great product

great price for product but it is a little difficult to put together especially if you have a smaller room. if space is not a problem then you will have no issues with this.

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Dec 26, 2024
Jessica
Item details
Color: Black
5 out of 5 stars review

Verified Purchase

The height of a 7 year old corgi

It would have been helpful to read the description of the height of this frame but that is my fault. However, I have grown to love the height. My corgi is upset he can no longer attempt to jump on the bed as it is as tall as a corgi in height, so now he can freely roam underneath. My husband said putting it together; he questioned the sturdiness but once he added the last piece it felt firm.

Helpful?2KTL0896GWDC756072575