The package dimensioning device is configured for ascertaining measurements of cuboidal and boxed items to provide data to computer-implemented package management processes. The device has a base and a vertical support member. The base is configured to receive a package thereon and includes a weight sensor. There are multiple space-apart contactless sensors including a top sensor carried by the vertical support member, and side sensors positioned adjacent sides of the base which output dimensional data signals related to a height, length and width of the package. A control unit is communicatively coupled to the weight sensor and multiple spaced apart sensors and configured to calculate weight, height, length and width measurements of the package based upon the weight data signal and dimensional data signals. A communication unit is coupled to the control unit and configured to output the weight, height, length and width measurements to a computer network resource for access and use by the computer-implemented package management processes.