>>7516497I saw that one too, but I'm a bit paranoid with how thin the wood is at the ends. Though again, most of the Detolf weight is distributed in the centre so it might not be too bad (and it seems like the centre is now one piece of wood).
Apparently Ikea used to sell glass doors for the Billy bookcases (like OP's image), but it seems like they discontinued that. For shame, because I'd rather have that than the Detolfs honestly.
