When using English (Imperial) units, the RAM Modeler Units can be set to feet or inches, and is simply a matter of preference. RAM Modeler Units for SI or Metric are automatically set to meters. Data input within dialog boxes which are unit dependent, such as beam depth restriction, will display the units required for that data item. The system of units may be changed by selecting the Criteria - Units command in the RAM Manager. Switching between feet and inches is done by selecting the Options - Change Units command.