3 Kallax shelves from Ikea stacked on top of each other. Bottom 2 rows...use baskets to "hide" miscel… | Ikea expedit bookcase, Expedit bookcase, Home organization
Ikea shelves stacked on top of each other
Stacking Kallax units : r/ikeahacks
An IKEA Hack of Epic Heights: A Sky-High Stacked Bookcase from KALLAX Shelves | Apartment Therapy