A device for subdividing vehicle cabs and/or storage spaces into a number of sub-portions, comprising a number of deformable walls and a drive unit for moving the walls between an open position, in which the walls do not subdivide the cab and/or the storage space, and a closure position, in which the walls subdivide the cab and/or the storage space into the sub-portions. The walls become deformed during movement between the closure position and the open position. Also included is a method for subdividing vehicle cabs and/or storage spaces into a number of sub-portions and a vehicle.