I've got four BILLY bookshelves that are 24 years old. I've taking them with me the eight times I moved. And they were disassembled multiple times. But I am not

I've got four BILLY bookshelves that are 24 years old. I've taking them with me the eight times I moved. And they were disassembled multiple times. But I am not sure whether any currently sold BILLY bookshelves would be that durable.