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Mainstays Cube Storage H Inserts, Set of 2, White

3.8 stars out of 91 reviews

(3.8)|

Mainstays Cube Storage H Inserts, Set of 2, White Mainstays 11 Cube Storage H Inserts Set of 2 White Mainstays 11 Cube Storage H Inserts Set of 2 Black Mainstays 11 Cube Storage H Inserts Set of 2 Warm Walnut

Actual Color:White

Black, $14.88

Warm Walnut, $8.00, was $14.88

$14.88

selected, White, $14.88

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

Generated by AI

Specs

Count per pack
2
Frame material
particle board
Decor style
Contemporary
Max load
4.4 lb
Size
11.02" x 11.65" x 11.02"
Assembly req
Y

Current price is $14.88

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About this item

Product details

Mainstays new Cube Storage Inserts take the versatility of the cube storage system to a whole new level! The Mainstays 11” Cube Storage H Inserts, sold as a set of two are designed to be used in Mainstays 11” Cube Storage Organizers (sold separately). The H Insert divides a single cube shelf into two separate compartments so you can accommodate items in a variety of sizes without wasting space. They can be used to divide cubbies horizontally or vertically and take only a few minutes to assemble. Maximize valuable storage space, while minimizing clutter, with the Set of Two Mainstays 11” Cube Storage H Inserts.

Set of two inserts that divide Mainstays Cube Organizer shelves in half for additional storage options
Designed to be used only with Mainstays 11" Cube Storage Organizers (sold separately)
Dimensions: 11.02" W x 11.65" D x 11.02" H (7.04 lb)
Creates two separate 10.25" W x 11.65" D x 5.25" H compartments
Can be used to divide a cube compartment vertically or horizontally
Materials: manufactured wood
Easy assembly takes only a few miuntes (Phillips head screwdriver required)
Mainstays Cube Storage Quad Inserts also available (sold separately)
Shelf can easily hold up to 4.4 lbs
Finishes available: White (MS5336278612049), Black (MS5336278612050) & Warm Walnut (MS5336278612051)
Package size: 14.57" x 13.46" x 2.56" (8.10 lb)
Assembly Instructions

info:

We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.

Specifications

Count per pack

Frame material

particle board

Decor style

Contemporary

Max load

4.4 lb

Warranty

Warranty information

N/A

Warnings

WARNING: WARNING: This product can expose you to chemicals including formaldehyde (gas), which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/furniture.

Customer ratings & reviews

3.8 out of 5 stars

stars91 ratings23 reviews

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Showing 1-3 of 23 reviews

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?

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?

May 23, 2025

Mickey

5 out of 5 stars review

Seller Verified Purchase

Built to Last!

The Mainstays 11" Cube Storage H Inserts in black are a great way to add some structure to your storage cubes. They were easy to slide in and instantly made organizing my shelves way easier. The black color looks sleek and goes with everything. Super practical and a nice upgrade for any cube organizer!

Incentivized Review

Review from Field Agent

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Mainstays Cube Storage H Inserts, Set of 2, White

Key item features

Specs

How do you want your item?

Try 30 days of Walmart+ for just $1!

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