32-inch door
Tight Fit- the standard flat-pack box uses its narrow face at the doorway; the long edge matters after the frame
- The standard BILLY box is the fit object, not the assembled bookcase.
The IKEA BILLY Bookcase standard flat-pack box is about 81×12×31 inches. Check whether it clears your door before pickup, delivery, or assembly.
The product measurements are already loaded. Add your real space dimensions for a personalized answer.
The item
Model 002.638.50
BILLY is IKEA's classic open bookcase and one of the best-selling shelves in the world. It ships as a flat package roughly 81 by 12 by 31 inches that you build on site, so the long, slim box, not the upright shelf, is your carry object. At about 12 inches thick it clears doors easily; the length is what to watch on turns.

Popular checks
The spaces shoppers most often check this product against.
Three possible answers
These are illustrative scenarios, not guarantees for your space. Run your own measurements through the checker below for a result you can trust.
Details before you move
Use the standard flat-pack box: about 81×12×31 inches. IKEA flat-pack products are usually assembled inside the room, so the box is what has to clear the path.
Usually no for a flat-pack. The door is normally easy; tight hallway turns after the door can still block a long box.
Use package dimensions when you are bringing home a new IKEA item. Use assembled dimensions only if the product is already built and cannot be disassembled.
These are ItemFits retail research figures based on IKEA published dimensions and the existing IKEA dimensions catalog. Package sizes can vary by color, article, and market, so measure your actual box and run the live checker.
Keep checking the route
All product names, trademarks, and brands are property of their respective owners. ItemFits is an independent fit-check and compatibility service and is not affiliated with, endorsed by, or sponsored by any retailer or manufacturer unless explicitly stated.