ROUTING METHOD AND ROUTING STRUCTURE

A routing method for routing a corrugated tube between a vehicle body of a vehicle and a slide door of the vehicle, the method includes providing the corrugated tube including a main body portion and a rigid portion, the rigid portion having a first end and a second end, attaching a vehicle-body-side unit to the rigid portion, the vehicle-body-side unit including a first attachment member and a first fixing member, attaching a door-side unit to the main body portion, the door-side unit including a second attachment member and a second fixing member, and adjusting a distance between the first end and a position at which the first attachment member is attached to the rigid portion in accordance with the vehicle in which the corrugated tube is routed.