Share Email Facebook Twitter LinkedIn To Create an AutoCAD Dimension Style Click Home tabAnnotation panelAEC Dimension Style. In the Dimension Style Manager, click New. Related Concepts About AEC Dimension StylesAbout AEC and AutoCAD Dimension StylesAbout Defining Dimensioned Objects in the AEC Dimension Style Related Tasks To Create an AEC Dimension StyleTo Change the Number of Chains in an AEC Dimension StyleTo Change the AEC Dimension Display ComponentsTo Change the Style Properties with the AEC Dimension Style WizardTo Attach Notes and Files to an AEC Dimension Style