kallax shelf insert size

Kallax Shelf Insert Sizes: Perfect Fit Guide

By Olivia SmithApril 24, 2026

The Kallax shelf system from IKEA has become a staple in modern homes, offering versatile storage solutions with its iconic cube design. A common query among customers is determining the right insert size for their Kallax shelves. This article aims to provide a comprehensive guide on Kallax shelf insert sizes to help you make an informed decision.

Before delving into the insert sizes, let's briefly discuss the Kallax shelf system. It's available in various configurations, including 2x2, 4x2, 5x5, and 8x4 cubes, offering extensive storage capacity. Now, let's explore the insert sizes that can transform your Kallax shelves into functional and organized spaces.

Standard Kallax Insert Sizes

The standard Kallax insert sizes are designed to fit perfectly into the cube openings, maximizing your storage space. These inserts come in three primary sizes:

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Small: 23.6 x 15.7 x 11.8 inches (60 x 40 x 30 cm)
Medium: 23.6 x 15.7 x 17.7 inches (60 x 40 x 45 cm)
Large: 23.6 x 15.7 x 23.6 inches (60 x 40 x 60 cm)

Small Inserts

Small inserts are ideal for storing smaller items like books, CDs, or decorative objects. They can also accommodate A4-sized documents when placed vertically.

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Here are some examples of what you can store in small Kallax inserts:

Books (paperback and hardcover)
CDs and DVDs
Magazines
Decorative figurines and trinkets
A4 documents (when placed vertically)

Medium Inserts

Medium inserts provide additional height, making them perfect for taller items or multiple layers of smaller objects.

Some examples of items that fit well in medium Kallax inserts include:

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Hardcover books
Larger decorative items
Shoe boxes (when placed on their side)
Multiple layers of smaller items, such as stacked plates or bowls

Custom and Non-Standard Kallax Insert Sizes

While the standard insert sizes cater to many storage needs, IKEA also offers custom and non-standard sizes to fit specific requirements.

Here are a couple of examples:

Extra Deep Inserts

Extra deep inserts provide additional depth, allowing you to store deeper items like records, large binders, or tall decorative objects.

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Dimensions: 23.6 x 15.7 x 27.6 inches (60 x 40 x 70 cm)

Extra Tall Inserts

Extra tall inserts offer extra height, perfect for storing long items like wrapping paper, posters, or tall vases.

Dimensions: 23.6 x 15.7 x 31.5 inches (60 x 40 x 80 cm)

In conclusion, choosing the right Kallax shelf insert size depends on the items you want to store and the overall aesthetic you're aiming for. By understanding the standard and custom insert sizes available, you can create a functional and organized space that complements your home's decor. Happy organizing!