Driving place of a commercial vehicle comprising a driver's seat (S), a steering wheel (V) and a set of pedals (P), in which the driver's seat (S) is secured to the vehicle by means of a long-limbed post (M) sliding on a guide (L), so that the long-limbed post (M) lies in a vertical plane parallel to a longitudinal development of the vehicle, arranged in an oblique position so that a respective upper end (M2) of the post is more set back than a respective lower end (Ml).