Tojo High Stacker Shelving System. This high stacker by Dirk Frömchen for Tojo Möbel lives up to its unassuming name, as it is a (nearly) infinitely expandable system for storing books, files, and display items in a brilliantly simple way. And all of this without screws, drilling, or other tedious handiwork. For vertical stacking, primarily extension components are used – two side panels with a shelf. The top is capped with a cuboid base element featuring a bottom and a smooth, finishing lid. The distinctly milled sides give the shelf a unique appearance, but they primarily serve to stabilize the loosely stacked individual elements. The bottom of each element is secured in such a way that it prevents lateral shifting of the element placed on top. Extension element with doors. For those who prefer to stack a shelf or freestanding room divider with a closed front and thus wish to avoid the sight of too many items, this stylish variant is the perfect choice, featuring two doors that can be opened with milled grips.