BILLY Height extension unit, white, 16x11x14 "
Price $ 25.00
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BILLY bookcase is a beloved icon that never goes out of style. Thanks to its versatility you can use it in many different ways at home – regardless of whether you store books or everyday items in it.
Article Number405.252.75
Product details
With a shelf/height extension unit, you can make the most of the wall area, while freeing up space on the floor.
Designer
Gillis Lundgren
Good to know
Safety strap for mounting to wall included.
To be combined with BILLY bookcase 15¾x79½" for added storage vertically.
Product is possible to recycle or use for energy recovery, if available in your community.
Keep in mind that you need enough space between the top of the furniture and the ceiling to be able to anchor the product to the wall.
Materials and care
Material
- Top panel/ Back:
- Particleboard, Paper foil, Paper foil
- Side panel:
- Particleboard, Paper foil, Paper edging
Care
Wipe clean using a damp cloth and a mild cleaner.
Wipe dry with a clean cloth.
Assembly and documents
Assembly instructions
BILLY Height extension unit405.252.75Advice and care instructions
BILLY Height extension unit405.252.75Measurements
- Width: 15 3/4 "
- Depth: 11 "
- Height: 13 3/4 "
Packaging
BILLY
Article Number405.252.75- Width: 14 ¾ "
- Height: 3 "
- Length: 15 "
- Weight: 10 lb 15 oz
- Package(s): 1
Reviews
My bookcase went to new heights!MichelleLove this extension to my bookcase! It helps make it more finished and gives more space!
Does not match original BillyDianaWhile the color may be close enough, the edges on the new Billys are rounded and have a distinct difference in the sheen, causing a definite visual difference when placed next to, or on top of, your existing shelves. It would have been nice to have a heads up before they retired the older, higher quality, style as I now will never be able to add extensions to my entire library of shelves. Very disappointed and wish I could afford to replace everything with a different brand.
Small but Mighty – Perfect Extra StorageJessicaThis little extension was the perfect addition to my narrow BILLY bookcase. Even though it’s compact, it adds just the right amount of extra space for books and decor. With the addition of glass doors, it looks like it was always part of the unit. Assembly was quick and easy, and it makes the bookcase look taller and more balanced. Great value for the extra storage it provides!
Surface Layer was peeling offCarlosThe surface layer came with a corner peeled off. Poor quality. I didn’t want to deal with a return, so used a glue stick to help hold it on the particle board, and thankfully it was in an inner wall that connected to another piece, so it’s staying put.
Amazing added height Kelli-AnnLooks great
Color is a little off, but just what we needed.StanWas thinking about manually adding a shelf over the Billy Bookcases we have in our second bedroom/storeroom, when I remembered that there are Billy extensions. SO much easier than building a shelf attached to the wall with hardware store materials. And it looks nicer. The only problem is that our Billy shelves were from a while ago and IKEA no longer makes the matching color. They changed them a few years back. If this was a prominent area, like a living room, this would have been a problem. But for a second room mostly out of site, the functionality far outweighs the color difference. Hardly notice that any more.
Doesn’t match Billy bookcase color/textureCourtneyThe white Billy extensions no longer match the white Billy bookcase. I just bought my white Billy bookcases on December 23rd 2024 in store. The extensions were not in stock until March 13th 2025. I purchased the extensions in store on March 15th 2025. After building them and attaching them I now see that the color and materials of the extensions are not the same as the bookcases. The extensions are like a paper type material with a yellowish greenish tint versus the bookcases that are pure white. Super disappointed that they changed the extensions without making it clear that they no longer match the bookcases. The extensions also have a finish that is smoother than the bookcases which are lightly textured on the edges. It would be helpful if Ikea either changed the name (e.g. Billy 2.0) or the color (e.g. white 2.0) to ensure that the customer can tell that the product has changed and we could verify if the two pieces will still match.
Nice addition to Billy lineKarenI 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.
Love my book shelf extensions MilinThey look so good and have taken on a whole new look once installing crown moulding. Love love love
Billy ExtensionRobynVery easy to assemble and attach to other Billy pieces. Consistently good design and quality.
Customer reviews
4.3Average rating
156Reviews