Mainstays

Mainstays Cube Storage H Inserts, Set of 2, White

3.9 stars out of 94 reviews
(3.9)|
94 ratings
Mainstays Cube Storage H Inserts, Set of 2, WhiteMainstays 11 Cube Storage H Inserts Set of 2 WhiteMainstays 11 Cube Storage H Inserts Set of 2 BlackMainstays 11 Cube Storage H Inserts Set of 2 Warm Walnut
Actual Color:White
Warm Walnut, $8.00, was $14.88
$14.88
selected, White, $14.88
Black, $14.88, Out of stock

Key item features

  • Additional Storage: Set of two inserts that divide Mainstays Cube Organizer shelves in half for additional storage options
  • Compatible Design: Designed to be used only with Mainstays 11" Cube Storage Organizers (sold separately)
  • Compact Dimensions: Dimensions: 11.02" W x 11.65" D x 11.02" H (7.04 lb)
  • Flexible Compartments: Creates two separate 10.25" W x 11.65" D x 5.25" H compartments
  • Versatile Use: Can be used to divide a cube compartment vertically or horizontally
  • Durable Material: Made from manufactured wood
  • Easy Assembly: Easy assembly takes only a few minutes (Phillips head screwdriver required)
  • Weight Capacity: Shelf can easily hold up to 4.4 lbs
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Current price is $14.88
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3.9 out of 5 stars
stars94 ratings23 reviews
How item rating is calculated
  1. 5 stars60% (56)
  2. 4 stars10% (9)
  3. 3 stars9% (8)
  4. 2 stars3% (3)
  5. 1 star19% (18)

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Showing 1-3 of 23 reviews

Jan 27, 2026
Johanna
Item details
Color: White
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?2NCVQYFCI8N513932710066
May 24, 2025
SiestaMom
5 out of 5 stars review

Seller Verified Purchase

Love the extra shelving this provides!

These are great for adding additional shelving for your cube storage. If you've put together furniture before, then you won't have any trouble at all putting these together. I was able to do it without even looking at the directions. I love that it gives me additional shelving for shoes so that the shoes aren't sitting on top of each other. They fit in perfectly.

Incentivized Review
Review from Field Agent
Helpful?2NCVQYFCI8N513932710066
May 26, 2025
AJ
5 out of 5 stars review

Seller Verified Purchase

Perfect fit shelves

These inserts are just perfect for the mainstay cube shelf set. I have gotten that previously, and I like these shelves that just split up the space perfectly. They slide in perfectly, they're sturdy enough, and they are a nice snug fit. I use them to split up the space for shoes, which it works perfectly for.

Incentivized Review
Review from Field Agent
Helpful?2NCVQYFCI8N513932710066