There are different kinds of shoe storage available in the market as they are suitable for storing shoes that are not to be accessed frequently. Make sure that when you employ boxes, they are all of the similar variety and that they are made to stack together. Shoe racks under bed can be plastic coated metal, laminate, and melamine covered particle board and even real cedar and look for racks with stackable components so you can use the vertical space in your closet. This arrangement offers space for shoe storage and still allows sufficient vertical space above your shoes for hanging garments.
Under bed shoe storage are made to fit underneath the bed to provide the use of space that is otherwise wasted. Under bed units are made of either soft plastic or rigid plastic boxes with hinged lids and this is a different shoe storage idea for those shoes that are not often used. There are products called bed risers that can be used to get the bed a few inches higher in order to make the horizontal surface under the bed more functional for storage of your shoes. You can go to the store and purchase shoe storage under bed that is adjustable to different heights and they might provide the few extra inches you need.