I have 16" deep Elfa shelving from The Container Store in my sewing closet. These boxes fit perfectly under the bottom shelf. In the few places where the shelf brackets get in the way, I just cut back the boxes slightly so they fit in. I am also covering and labeling the boxes to give the closet a clean, professional, organized look. This size is hard to find in Portland Maine, so being able to order them gives me a huge advantage.