Mainstays Cube Storage Quad Inserts, Set of 2, Black
Mainstays Cube Storage Quad Inserts, Set of 2, Black
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Mainstays

Mainstays Cube Storage Quad Inserts, Set of 2, Black

|158 ratings
Mainstays Cube Storage Quad Inserts, Set of 2, BlackMainstays 11 Cube Storage Quad Inserts Set of 2 BlackMainstays 11 Cube Storage Quad Inserts Set of 2 Warm Walnut
Actual ColorBlack-Out of stock

Key item features

  • Organizer Compatibility: This black set of two inserts is exclusively for Mainstays 11-inch Cube Storage Organizers (sold separately), adding internal divisions.
  • Quad Compartments: Each insert divides one cube into four separate compartments, providing smaller sections for sorting and storing items.
  • Precise Dimensions: Assembled, each measures 11.02 in W x 11.65 in D x 11.02 in H. Compartments include two 5.4 in W and two 5.0 in W cubbies, all 11.65 in D x 5.4 in H.
  • Sturdy Material: Constructed from particle board, each 7.04 lb insert holds up to 4.4 lb per shelf.
  • Assembly Essentials: Assembly is required with included hardware; a Phillips head screwdriver is needed.
  • Chemical Warning: This product carries a warning for formaldehyde (gas) exposure, known by California to cause cancer or birth defects.
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Specs

Number of shelves, 4Adjustable shelves, NMaximum load weight per shelf, 4.4 lbMax load, 8.8 lbShelf depth, 11.65 inShelf & shelf unit type, Storage Shelves

About this item

Product details

The Mainstays Cube Storage Quad Inserts are a black set of two inserts designed to be used only with Mainstays 11 in Cube Storage Organizers (sold separately). Each insert fits into a single cube and divides it into four separate compartments, giving you smaller sections to sort and store items within a compatible organizer. Because the four cubbies come in two slightly different widths, you can check the exact compartment and assembled dimensions in Key Features to confirm fit for what you plan to store. Assembly is required, and you'll need a Phillips head screwdriver to put each insert together.
  • Compatibility: Designed to be used only with Mainstays 11 in Cube Storage Organizers; organizer sold separately.
  • Quad compartment layout: Each insert divides one cube into four separate compartments, creating two 5.4 in W x 11.65 in D x 5.4 in H cubbies and two 5.0 in W x 11.65 in D x 5.4 in H cubbies.
  • Assembled size: 11.02 in W x 11.65 in D x 11.02 in H; weighs 7.04 lb.
  • Construction and shelf capacity: Made of particle board; holds up to 4.4 lb per shelf.
  • Assembly: Assembly required with included assembly hardware; a Phillips head screwdriver is required.
  • 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.
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Specifications

Number of shelves

4

Adjustable shelves

N

Maximum load weight per shelf

4.4 lb

Max load

8.8 lb

Warranty

Warranty information

N/A

Warnings

Customer ratings & reviews

3.5 out of 5 stars
stars
158 ratings35 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars52% (82)
  2. 4 stars8% (13)
  3. 3 stars8% (13)
  4. 2 stars6% (9)
  5. 1 star26% (41)
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Showing 1-3 of 35 reviews

Jan 17, 2026
Reviewer name: Sara
Top Reviewer
Item details
Color: White
5 out of 5 stars
5 out of 5 stars review

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Helpful?409I5BPPYDLR13929369115
Dec 29, 2025
Reviewer name: Bg
Top Reviewer
Item details
Color: Black
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

waste of money

regret buying it

Helpful?409I5BPPYDLR13929369115
Jan 7, 2026
Reviewer name: E
Top Reviewer
Item details
Color: Black
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Just now arrived thank you . Got it . Yahooooo.

Helpful?409I5BPPYDLR13929369115
Current price is $11.67
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