For the Series you get an aluminium subframe or a steel surbframe, as well as an optional single piece base plate. On this you mount the walls made of light aluminium panels, the desired roof and other options.
Standard Version
> all walls 31 mm aluminium clamping plate
> roof GRP (31 mm thick), rear frame aluminium
> body colour available in RAL 9010 or MB 9147
Subframes & Floor Walls Roof Weight Comparison Assembly Instructions