A solid medium size it is also good for heavy items, files & folder storage, warehouse dispatches, and for use as postal boxes. A Pack Of 30 x Double Wall Cube Storage Moving Packing Boxes 16"x16"x16". Commonly known in the removals industry as a 'china carton', this is the perfect size for crockery, china etc - you can fill the box without it splitting and it would make the perfect weight once full. Easily hand carriable once full and easily fits through doorways.