In a support structure for a commercial motor vehicle including two longitudinal frame members between which a drive unit including an internal combustion engine and a transmission is arranged and wherein the support structure has an independent wheel suspension for each of the vehicles front wheels, each with an upper A-arm and a lower A-arm mounted to the support structure for supporting the front wheels, a support unit is provided which, in front and behind a space for receiving the drive unit extends around the longitudinal frame members and is fastened to the longitudinal frame members and on which at least the lower A-arms are mounted.