Mainstays Cube Storage H Inserts, Set of 2, Warm Walnut, for Mainstays 11 in Cube Storage Organizers
Mainstays Cube Storage H Inserts, Set of 2, Warm Walnut, for Mainstays 11 in Cube Storage Organizers
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Mainstays

Mainstays Cube Storage H Inserts, Set of 2, Warm Walnut, for Mainstays 11 in Cube Storage Organizers

|141 ratings
Mainstays Cube Storage H Inserts, Set of 2, Warm Walnut, for Mainstays 11 in Cube Storage OrganizersMainstays 11 Cube Storage H Inserts Set of 2 Warm WalnutMainstays 11 Cube Storage H Inserts Set of 2 BlackMainstays 11 Cube Storage H Inserts Set of 2 White

Key item features

  • Storage Integration: Designed for Mainstays 11-inch Cube Storage Organizers, these inserts enhance existing units by dividing one cube into two separate compartments.
  • Compartment Dimensions: Each insert measures 11.02 in W x 11.65 in D x 11.02 in H, creating two internal compartments, each 10.25 in W x 11.65 in D x 5.25 in H.
  • Versatile Placement: Can be positioned either vertically or horizontally, offering flexible organization to sort smaller items and maximize space utilization.
  • Sturdy Construction: Made from particle board, each insert weighs 7.04 pounds and supports up to 4.4 pounds, featuring a Warm Walnut finish for coordination.
  • Required Assembly: Assembly is necessary; hardware is included, but a Phillips head screwdriver is required. The surface can be wiped clean with a soft, dry cloth.
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Specs

Count per pack, 2Frame material, particle boardDecor style, ContemporaryMax load, 4.4 lbSize, 11.02" x 11.65" x 11.02"Assembly req, Y

About this item

Product details

This set of two Mainstays Cube Storage H Inserts is made for Mainstays 11 in Cube Storage Organizers, sold separately. Each insert divides one cube into two compartments, so it is easier to sort smaller items and make better use of the space inside each cubby. You can place the insert vertically or horizontally to match the way you want to organize books, supplies, or everyday essentials. The Warm Walnut finish coordinates with your storage setup, and the particle board construction gives these inserts a clean, structured look. Assembly takes only a few minutes, helping you add extra organization without replacing your organizer.
  • Designed for use with Mainstays 11 in Cube Storage Organizers; organizer sold separately.
  • Each insert measures 11.02 in W x 11.65 in D x 11.02 in H and weighs 7.04 lb.
  • Creates two compartments that measure 10.25 in W x 11.65 in D x 5.25 in H.
  • Can be positioned vertically or horizontally to divide a cube in the way that works best for your storage needs.
  • Made of particle board and supports up to 4.4 lb.
  • Assembly is required; assembly hardware is included, a Phillips head screwdriver is required, and the surface wipes clean with a soft, dry cloth.
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Specifications

Count per pack

2

Frame material

particle board

Decor style

Contemporary

Max load

4.4 lb

Warranty

Warranty information

N/A

Warnings

Customer ratings & reviews

3.9 out of 5 stars
stars
141 ratings29 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars58% (82)
  2. 4 stars11% (16)
  3. 3 stars9% (13)
  4. 2 stars3% (4)
  5. 1 star18% (26)
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Showing 1-3 of 29 reviews

Feb 7, 2026
Reviewer name: WEBBiE
Top Reviewer
Walmart Associate
Item details
Color: Black
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Works and looks great!

Works as described! Bought these to split up the top 2 cubby's for me and the kids controllers and it worked great. Definitely recommend and for the price can't beat it!

Helpful?2NCVQYFCI8N513951014886
Jan 27, 2026
Reviewer name: Johanna
Item details
Color: White
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Simple, sturdy, and very versatile

I used these Mainstays cube storage H inserts to create more storage and they worked out great. They feel sturdy, are easy to position, and the white finish looks clean and modern. I don't have cube shelves, so I flipped the top inserts to create additional storage space and used them to organize handbags. It worked perfectly and made everything easier to see and access. Great option if you want a simple, affordable way to add structure and maximize storage. — @johannavargasrealtor

Helpful?2NCVQYFCI8N513951014886
Nov 29, 2025
Reviewer name: DesertMom
Top Reviewer
Item details
Color: Black
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Shoe organizer

perfect for my closet and organizing my shoes.

Helpful?2NCVQYFCI8N513951014886
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