BILLY Height extension unit, black-brown, 32x11x14"
BILLY Height extension unit, black-brown, 32x11x14"

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 Number702.638.56

Product details

Surface made from natural wood veneer.With a shelf/height extension unit, you can make the most of the wall area, while freeing up space on the floor.Safety strap for mounting to wall included.Use with BILLY bookcase 31½x79½" for added storage vertically.Designer

IKEA of Sweden

  • Particleboard, Ash veneer, Paper, Ash veneer, Stain, Clear acrylic lacquer
    Wipe clean using a damp cloth and a mild cleaner.Wipe dry with a clean cloth.
  • At least 50% (weight) of this product is made from wood fiber, a renewable material.Product possible to recycle or use for energy recovery, if available in your community.
  • BILLYHeight extension unitArticle Number:702.638.56
    Width: 14 ¾ "Height: 2 ¼ "Length: 30 ¾ "Weight: 17 lb 7 ozPackage(s): 1

Product size

31 1/2 "
11 "
13 3/4 "


Fits an old billy shelfTakiyahFits an old billy shelf we had perfectly.5
Billy extensionJoelleGreat product5
Worked as plannedJohnny43It fit perfectly on our existing Billy book case5
Daca1434Really adds to the Billy bookcase5
Great ideaEssayons121I bought them to be extensions, but they would work due to height restrictions. I ended up using them as additional shelving in the closet.5
FantasticGranny9Did exactly what thy were suppose to. Extend the height of the bookcases.5
Wonderful Product!NetzivI bought this to add a shelf to my existing BILLY bookcase. It fits practically seamlessly. I thought I would have to screw on brackets to attach it to the bookcase, but there were already built in holes for the included attaching screws. My only regret is that I don't have enough room above the unit to go higher. This product really does what it is supposed to. Thank you Ikea!5
i dont understandhchfdhf8585Better than Billy the bookcase but still WHACK. No easy installation and just confusing directions.1
Easy installGJCOThis is a great feature especially if you have too many items for your bookshelf. The extra row will allow us to hold more of our books, and it blends nicely with the original shelf (which we got over 10 years ago). Reasonable price.5
A great shelf extensionTrixie4300Happy to have an additional space for my shoes.5
Doesn’t lineup rightTocam2The Billy does not look right because when you use the wall anchor it creates a gap between the two pieces of furniture3
Great ideaDfourGreat way to extend our bookcases and have even more room for all our books.5
Love BUTLynnielinnie8THERE IS NO WAY TO ATTACH THIS TO THE WALL WITH ONLY 3” clearance to the ceiling. There are only two attachments in the front of the top cabinet, none in the back, so this is not so secure eiher. There should also be a way to attach one bookshelf to the next one. I have a big gap at the top i cannot squeeze closed. There is a half inch gap in the back short of attaching to the lower cabinet.3
Extra storage neededMemes113We bought 9 to give us extra space5
easy assimbly - looks greatbernie xyzzyAfter purchasing the shelf, I raised there was still room between the top and the celling. With plenty of room and the need to keep from storing loose books on top, I found this BILLY Height extension unit. It is easily assembled and looks like it was part of the original purchase. I plan to buy more of these BILLY Height extension units.5
Might Be Good, Never Got to Use ItblevI bought the Billy Height Extension Unit because it would have turned a short Billy (see separate review) into the perfect size for our storage needs. After assembling the bookcase and adding the doors I'd bought, I went to attach the height extension and ran into a brick wall. Eventually I found a private blog online that explained the height extension is ONLY for use with the tallest Billy model (unless I wanted to start drilling holes, etc.). This limitation is NOT very clear on the IKEA website; the wording is something like, works well with the tall Billy... but nothing more. Luckily I had not opened the box so returning this item was trouble-free. I'm giving it a 3-star review because it looked good in the store & would have done exactly what we needed... but I never got to try it out myself.3
MysteryCindy144We have a 3 1/2 foot Billy bookcase at home and wanted to add an extension. Although we have furnished two homes with IKEA furniture that we assembled (and actually enjoyed doing so) we couldn't figure out how to install the extension on the bookcase so we gave up and returned it. The instructions did not appear to apply to the bookcase we have even though it is a Billy.2
alternative usemike22Selected this to add an additional compartment to existing closet shelving wher i needed extra shelving.5

Height extension unit, black-brown32x11x14"

BILLY Height extension unit, birch veneer, 32x11x14"BILLY Height extension unit, black-brown, 32x11x14"BILLY Height extension unit, white, 32x11x14 "
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BILLY Height extension unit, black-brown, 32x11x14"