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BILLY Height extension unit, white,

Price $ 50.00
BILLY Height extension unit, birch veneer, 32x11x14"
BILLY Height extension unit, black-brown, 32x11x14"
BILLY Height extension unit, white, 31x11x14 "

How to get it

Assembly ServiceChecking availability...

It is estimated that every five seconds, one BILLY bookcase is sold somewhere in the world. Pretty impressive considering we launched BILLY in 1979. It’s the booklovers choice that never goes out of style.

Article Number402.638.53

Product details

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


IKEA of Sweden

  • Safety strap for mounting to wall included.

    Use with BILLY bookcase 31½x79½" for added storage vertically.

    Product is possible to recycle or use for energy recovery, if available in your community.

  • Material
    Top panel:
    Particleboard, Paper foil, Plastic edging
    Side panel:
    Particleboard, Paper foil, Plastic edging, Paper edging
    Particleboard, Paper foil, Paper edging

    Wipe clean using a damp cloth and a mild cleaner.

    Wipe dry with a clean cloth.


Width: 80 cm (31 1/2 ")

Depth: 28 cm (11 ")

Height: 35 cm (13 3/4 ")

  • BILLYArticle Number402.638.53

    Width: 36 cm (14 ¼ ")

    Height: 5 cm (2 ¼ ")

    Length: 78 cm (30 ½ ")

    Weight: 6.69 kg (14 lb 12 oz)

    Package(s): 1

Ratings and reviews

Perfect fitCatherineThis is great attachment on my billy5
Quick and easy to assemble.DebbieQuick and easy to assemble. Works well as an extension unit above the main Billy bookcase.5
Good to haveZsuzsannaOur bookcase with this extension fits perfectly into our living room.5
We’re happy with our BillyGAILWe’re happy with our Billy cabinets. They complete our room nicely.5
AliAliGreat addition to extend to near full ceiling height5
Perfect addition!AshleighThe height extension is the perfect thing to make your bookcase look like a custom piece!5
LoveDinaLove the billy series!5
Added to the top ofKENAdded to the top of two single wide billy bookcases to allow us to use two (actually four) of the shorter oxberg doors with an open shelf in the middle of the bookcase.5
wonderfulSandraWe went to Ottawa to make sure of our choice and this is just what we wanted5
Great way to extend a regular bookshelf!BezNice and easy way to make a typical book shelf as tall as you want. Just keep adding extensions. We added two to ours, to take it right up to our 9’ ceilings - giving us extra storage space and drawing the eye up and making the room feel bigger. Great idea, IKEA!5
Exactly as expectedNicolaUsed these to increase cupboard height in kitchen. Easy to set up. Performs as desired. Very happy with my purchase.5
modified for closetMICHELLEI used these for a shallow area of my closet. I added a clothes rod and was able to hang our pants there. These were easy to build and look great in the closet. I would have preferred white but it wasn’t available in store.4
I like it.ElisabethI like it.4
Excellent for the priceRehabExcellent for the price5
Worked greater for extending theMarleenWorked greater for extending the height by being very unison in look5
First time purchase of thisMAUDIAFirst time purchase of this item. It's great5
It works where I wantedvtoMARYSEIt works where I wantedvto put it. However the writing was put on the tablet instead being put underneath it.4
BILLY Height extension unitVerified BuyerWorks as described just wish the would stop using plastic parts.5
Laundry RoomBOBSKI16Added doors and extension to existing Billy Shelving Unit. Great fit.5
H2018These are just the addition needed to complete the library5

Our take on wood

Wood is the material most commonly associated with IKEA furniture, and for good reasons. It’s renewable, recyclable, durable, ages beautifully and it is an important part of our Scandinavian design heritage. At IKEA we believe that sourced in a responsible way, wood is a key change driver for climate mitigation. In 2012, we set a goal that by 2020 our wood would be from more sustainable sources. We are happy to announce that we have reached this goal and today, more than 98% of the wood used for IKEA products is either FSC-certified or recycled.

Forests are critical for life on earth

Forests contribute to maintaining balance in the atmosphere, purify the air that we breathe and are part of the water cycle. They nourish wildlife biodiversity and provide homes for indigenous communities who depend on forests for their livelihoods. 90% of plant and animal species living on the planet need forests to survive. They provide sources of food, fuel, timber and many other ecosystem services that we rely upon. Sourcing approximately 19 million m3 of roundwood per year from some 50 countries, IKEA has a significant impact on the world’s forests and the timber industry and a huge responsibility to positively influence how wood is sourced. Responsible wood sourcing and forest management ensure that the needs of people dependent on forests are met, that businesses can work sustainably, that forest ecosystems are protected and biodiversity is enhanced.

100% wood from more sustainable sources

At IKEA, we work with strict industry standards to promote responsible forestry. We don’t allow any wood in our supply chain from forest areas that are illegal or contain high conservation values or from forest areas with social conflict. Before starting to work with IKEA, suppliers must demonstrate that they meet IKEA critical requirements on wood sourcing. IKEA requires all suppliers to source wood from more sustainable sources (FSC-certified or recycled wood). All suppliers are audited regularly and non-compliant suppliers are required to implement immediate corrective actions. By working together with our suppliers, we are proud to announce that we have reached our more sustainable sources goal, which we set out to achieve by 2020. Today more than 98% of the wood used for IKEA products is either FSC-certified or recycled.

IKEA Forest Positive Agenda for 2030

As pressure on the world’s forests and the surrounding eco-systems increases due to unsustainable agriculture, the expansion of infrastructure and illegal logging, it is time to take an even more holistic approach to protect and support these important resources for generations to come. The IKEA Forest Positive Agenda for 2030 set out to improve forest management, enhance biodiversity, mitigate climate change and support the rights and needs of people who depend on forests across the whole supply chain and drive innovation to use wood in even smarter ways. The agenda focuses on three key areas: • Making responsible forest management the norm across the world. • Halting deforestation and reforesting degraded landscapes. • Driving innovation to use wood in smarter ways by designing all products from the very beginning to be reused, refurbished, remanufactured, and eventually recycled.

We accomplish more by working together

For many years, IKEA has partnered with businesses, governments, social groups and non-governmental organisations to fight forest degradation and deforestation and increase the volume and availability of wood from responsibly managed forests both for our own supply chain and beyond. We are on a journey to improve global forest management and make responsible wood sourcing the industry standard, contributing to building resilient forest landscapes and improve biodiversity.


What is particleboard?

Particleboard is made from recycled wood and sawmill leftovers – so wood pieces with the wrong shade, woodchips and sawdust become a resource instead of possibly being discarded. We use boards for things like bookcases, bed frames, sofas and kitchen frames. To protect from wear and moisture, we apply varnish, veneer or foil that adds to the furniture's look.