The proper initial selection of model units is those units desired in the final output reports (see the Output Description chapters in each Design Module manual).

The system administrator specifies default units at the time of installation.

You may change the system of units at any time during the modeling or design process. This capability is useful in the case where a job requires the production of designs in units that the engineer is unaccustomed to working. A building can be modeled, analyzed and output reports obtained in the familiar system of units. Once the design is completed to the satisfaction of the engineer, the units can be changed for the final output reports.