Cube sizes vary deliberately across this 36 by 13.5 by 47 in bookcase, so a large 24 in bay takes storage bins while smaller 17 in cubes suit books and framed photos. Load ratings climb toward the base, from 55 lbs on the top shelf to 110 lbs at the bottom, totalling 320 lbs. A 4.5 in raised base simplifies sweeping underneath, and adjustable feet correct for uneven flooring.