BILLY Height extension unit, white,

BILLY Height extension unit, black-brown, 80x28x35 cm
BILLY Height extension unit, oak veneer, 80x28x35 cm
BILLY Height extension unit, white, 80x28x35 cm
BILLY Height extension unit, white stained oak veneer, 80x28x35 cm

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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

Article Number402.638.53
  • Safety bracket for fixing to wall included.

    To be combined with BILLY bookcase 80x202 cm 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 with a cloth dampened in a mild cleaner.

    Wipe dry with a clean cloth.

  • By using sawmill leftovers and scrap wood in the particle board in this product, we make use of whole trees and not only the trunks. That way, we take better care of resources.

    We want to have a positive impact on the planet. That is why by 2030, we want all materials in our products to be recycled or renewable, and sourced in responsible ways.


Width: 80 cm

Depth: 28 cm

Height: 35 cm

  • BILLYArticle Number402.638.53

    Width: 36 cm

    Height: 5 cm

    Length: 78 cm

    Weight: 6.69 kg

    Package(s): 1


Simple and functionalVerified BuyerAdded to the top of a MALM dresser to add extra shelving. Not the original function but once fixed, provides a good look and extra flexibility. A few superfluous holes in its bookcase role, but that doesn't matter.5
GreatVerified BuyerBrilliant idea to allow for more storage that matches our existing bookcase5
Arrived chippedVerified BuyerArrived chipped1
Excellent add onVerified BuyerYou can never have enough storage and this is the perfect addition to your Billy bookcase. Easy to add on and amazing the extra space you get.5
Colour doesn’t match!!!Akira27It does the job of acting as an extension but the colour in no way matches to my shelf!!! My billy bookshelf is in the white stained oak veneer and I bought the same colour but there is such a drastic difference! It doesn’t even look like it was stained?!? I called customer service and all they had to tell me was that there will be a colour difference but this is purely unacceptable? It looks pretty much like just the oak veneer colour... I checked the product number and i definitely got the right one! Ikea please sort this out!2
I like big books and I cannot lieStarbugor rather my daughter does. Makes a great extra shelf for her ever expanding book collection.4
Does the jobSuzie82Bought this to add onto an existing Billy bookcase I have to make a room divider. I have to say these are not made as well as the old billy products. It has done the job but I dont think I will be buying any more billy products in the future3
Perfect additionAandPBWe bought two of these to add additional height to the tall bookcases and made full use of the space5
Just what we wantedTom 32Brilliant.should have bought it sooner.5
Can"t give it minus stars.Unhappy, very unhappy.When you advertise something as a white unit, it should be white not mostly white with a beige/peach panel, that is not mentioned. Even your own customer service did not know about it. Regardless of whether that panel is invisible or not. It is advertised as a white unit and I'm really not happy. Very unhappy due to the fact of the first one I bought was completely WHITE.1
wall fixingsDuncanIf assembling with a main shelving unit realise that you only need to fit wall fittings to the top of the extension unit5
BILLY Height extension unit, white, 80x28x35 cm

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 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.

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What is particleboard?

Particleboard is made from recycled wood and sawmill waste – so wood pieces with the wrong shade, woodchips and sawdust become a valuable resource instead of 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. The day your sofa or bed needs replacing, the material in the particleboard can be recycled into something entirely new.