The interior of the DesignBus is apt for diverse activities:

- Meeting room for participation and design
- Workshop space for educational projects
- Design atelier and home base for field research
- Exhibition space on wheels
- Travelling cinema

The interior of the design-bus is constituted by a flexible system of folding furniture. There are five tables, five benches and tree fixed chairs which can be combined in different settings. Tree lose tables can be installed, one table for meetings with a side table or one large conference table in the centre. Unused tables are folded up against the wall. Unused benches are stacked in a rack on the other side. Doing so, the interior can also serve as an exhibition space measuring 1.7m x 3.5m (1.85m high). The tables folded towards the sides function as exhibition panels.