Black BILLY shelf extension, modern design, made of particleboard and paper foil.

Black bookshelf with wooden toy and books, maximising vertical storage.

Modern living room with black BILLY bookshelf filled with books and decor. Red chair, white sofa, and wooden coffee table with toys.

BILLY Height extension unit, black oak effect, 40x28x35 cm

Name: BILLY Height extension unit - black oak effect 40x28x35 cm
Brand: IKEA
SKU: 604.773.58
Price: 15 GBP
Availability: InStock
Rating: 4.3 (184 reviews)

Price £ 15

Complete with

A tall, slim BILLY bookcase in black with five shelves for storage.

BILLY Bookcase, 40x28x202 cm

Price £ 50

Collect 3 points with
IKEA Family

Join for free or log in|Explore what you can get

Add an extension unit to BILLY bookcase to maximise 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.

BILLY Height extension unit, black oak effect, 40x28x35 cm

DesignerGillis Lundgren

Article Number604.773.58

With a height extension unit, you can make the most of the wall area, while freeing up space on the floor.

Gillis Lundgren

Review: 4.3 out of 5 stars. Total reviews: 184Average rating

Reviews

Skip customer reviews

Very nice seemless look

Review: 5 out of 5 stars.5

I have tall ceilings and this was a great addition to the Billy bookcase I have in my reading nook. Also the height is great for super long hanging plants.

Anonymous reviewer, United States

My bookcase went to new heights!

Review: 5 out of 5 stars.5

Love this extension to my bookcase! It helps make it more finished and gives more space!

Anonymous reviewer, United States

Nice addition to Billy line

Review: 5 out of 5 stars.5

I used these above full-size Billy bookcases as part of a kitchen project. They are easy to assemble and sturdy. With the addition of Oxberg glass doors, the pieces look sophisticated.

Anonymous reviewer, United States

Review: 4.3 out of 5 stars. Total reviews: 184Average rating

Reviews