BILLY Height extension unit, black oak effect, 32x11x14"

Name: BILLY Height extension unit - black oak effect 32x11x14"
Brand: IKEA
SKU: 004.773.61
Price: 35 USD
Availability: InStock
Rating: 4.5 (350 reviews)

Price $ 35.00

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32x11x14"

Complete with

Black BILLY bookcase with adjustable shelves, natural wood grain.

IKEA Family price

BILLY Bookcase, 31 1/2x11x79 1/2 "

Price $ 69.00

22% off, save $20.00

Regular price: $89.00

Price valid Aug 3, 2026 - Sep 7, 2026 or while supply lasts

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BILLY

004.773.61

Add an extension unit to BILLY bookcase to maximize your vertical storage space and make efficient use of the floor area. This creates a new solution and more storage when your needs and life change.

More information

Review: 4.5 out of 5 stars. Total reviews: 350Average rating

Reviews

Skip customer reviews

Adding extra height and storage is so easy with the height extension unit.

Review: 5 out of 5 stars.5

Easy to put together, the height extension blends seamlessly to my existing Billy units. You can't tell that it's an addition, and matches perfectly.

Nicole, Australia

Billy Height Extension

Review: 5 out of 5 stars.5

We put in a library in our new home and this not only added space but really added ambiance to the room.

Nancy, United States

Great product

Review: 5 out of 5 stars.5

This bookcase is well made and easy to put together. i bought 2 full-size and 1 small for the corner with the extensions. I love it. Its perfect for holding my 3d print filaments.

Caitlyn, United States

Review: 4.5 out of 5 stars. Total reviews: 350Average rating

Reviews