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Best Modular Bookcases

Updated September 2021
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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
Bottom line
Pros
Cons
Best of the Best
Foremost Modular 5-in-1 Shelf Cube Storage System
Foremost
Modular 5-in-1 Shelf Cube Storage System
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Bottom Line

Sturdy, stylish construction that comes in multiple colors and design options

Pros

Available in espresso, honey, white, and black. Six stackable storage units that measure 15 inches by 15 inches each. Made with a combination of solid wood and PVC laminate. Holds up to 200 pounds in total.

Cons

This is the most expensive item on our list.

Best Bang for the Buck
AmazonBasics 4 Cube Wire Storage Shelves
AmazonBasics
4 Cube Wire Storage Shelves
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Bottom Line

A basic, budget-conscious choice if you don't need all the bells and whistles.

Pros

Durable, mild steel construction that is lightweight but lasts a long time. Comes in a four- or six-cube basic starter pack. Each cube measures 14 inches by 14 inches. Comes with a one-year warranty. Offered in white or black.

Cons

This is a low-cost option, so the quality isn't as high as other options.

LANGRIA Modular Shelving, DIY Closet Organization System, Plastic Wire Storage Cubes
LANGRIA
Modular Shelving, DIY Closet Organization System, Plastic Wire Storage Cubes
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Bottom Line

Multiple display choices and a unique style that is different from other options.

Pros

Each storage unit can hold up to 10 pounds. Each cube can be used separately or combined and stacked to make a customization storage unit. Long-lasting materials are made from biodegradable properties.

Cons

This is best used for lighter items, as it can fall apart easily under heavier weight.

SONGMICS Storage Cube Organizer with Rubber Hammer, 6-Cube Bookcase Cabinet
SONGMICS
Storage Cube Organizer with Rubber Hammer, 6-Cube Bookcase Cabinet
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Bottom Line

Three color options to match your style.

Pros

Hammer and everything you need to assemble in one box. Easy-to-clean and water-resistant design makes it great for kids rooms. 12-inch-by-12-inch storage cubes. Eco-friendly and safe for children and pets. Panels are rustproof and long-lasting.

Cons

Compared to other similar bookcases, this one is trickier to assemble.

Tespo Wire Cube Storage with 12 Individual Units
Tespo
Wire Cube Storage with 12 Individual Units
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Bottom Line

Great for organizing lots of items at a heavier weight.

Pros

Each cube measures 14 inches by 14 inches with 1.5 cubic feet of volume. This unit comes with 12 separate storage containers. Great option to use as a pet fence too. Rust-resistant steel is highly durable and long lasting. With tool-free assembly, this bookcase snaps quickly and easily in place.

Cons

This is a larger unit and isn't suited for smaller spaces.

HOW WE TESTED

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

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38
Models
Considered
194
Consumers
Consulted
24
Hours
Researched
Category cover

Modular bookcases are the perfect solution when you have a growing collection of items. As the number of items increases, you can add more areas to the modular bookcase. Adding more storage space looks natural, because the areas in the bookcase all match each other. Many people like modular bookcases because they can configure the shelves in different ways. This allows you to personalize the bookcase to your needs or to the space available. Often times, a modular bookcase will consist of a series of movable cubes. This configuration allows them to fit together tightly and to look natural in any layout. You often can add more cubes to your modular bookcase with additional purchases later.

Our Top Picks
Foremost
Best of the Best
Foremost
Modular 5-in-1 Shelf Cube Storage System
Bottom Line
Sturdy, stylish construction that comes in multiple colors and design options
Shop Now
AmazonBasics
Best Bang for the Buck
AmazonBasics
4 Cube Wire Storage Shelves
Bottom Line
A basic, budget-conscious choice if you don't need all the bells and whistles.
Shop Now
LANGRIA
Top Pick
LANGRIA
Modular Shelving, DIY Closet Organization System, Plastic Wire Storage Cubes
Bottom Line
Multiple display choices and a unique style that is different from other options.
Shop Now
SONGMICS
Top Pick
SONGMICS
Storage Cube Organizer with Rubber Hammer, 6-Cube Bookcase Cabinet
Bottom Line
Three color options to match your style.
Shop Now
Tespo
Top Pick
Tespo
Wire Cube Storage with 12 Individual Units
Bottom Line
Great for organizing lots of items at a heavier weight.
Shop Now