Abstract: The present disclosure provides an onboard object dimensioning system for a vehicle, such as a lift truck. The vehicle may have one or more sensors (e.g., a radar system, an acoustic sensor, an image capture system, LIDAR, microwave, etc.) to generate and transmit a signal toward an object on the vehicle, which is received as a feedback signal corresponding to a reflection from one or more surfaces of the object. Control circuitry receives data from the sensors including signal characteristics of the feedback signal. The data is converted into multiple dimensions corresponding to the one or more surfaces of the object, which are employed to determine a shape, volume, orientation, or area of the one or more surfaces of the object corresponding to the first and second dimensions.