Billy bookcases are sturdy, but they shouldn't be used in commercial or retail settings. They were not designed for long-term, heavy-duty use, so they may last long in a home setting but not in public.

Do Billy bookcase shelves sag?

Why do Billy Bookcase Shelves Sag? Billy bookcases sag because they are made out of particle-board. This material, while cheap, is not as durable as pure wood or other shelf materials.

Are Ikea Billy bookcases any good?

5.0 out of 5 stars Sturdy, well made slim bookshelf..for those tight spaces. Awesome bookshelf, fit right in the corner of the room, and is now carrying upwards of 30 books. Shelves are adjustable to the point you can use some for decorative items like jars, frames, pretty boxes, or just books and more books.