The shelf unit consists of a base, add-on sections and a top panel. They are assembled with invisible metal pins, making it easy to self-assemble and take apart and thus adapt Signed to new needs. When an add-on section is used as a top panel the hole fitted with a visible metal pin. The base has adjustable screws. Please note: combinations higher than 1500 mm must be fixed to the wall using the wall anchor supplied. Below you find a simple CAD program where you can build your own custom-made Sign storage.