Fits 6 k-cups in each section for the main part (18 total), and 11 in each (33 total) if you add the top part. Use glue to attach the top and bottom part together with the attachment piece.
Love the way it cleans up the counter space. Had one of those metal carousel racks but it's a counter hog. This jewel tucks away up close to the back splash leaving a lot of realestate for other uses.