This is a template attribute. Template attributes can be used in filtering, or to retrieve data from the model to use in drawings and reports. For example, when you create a report, Tekla Structures replaces the attributes added in the report template with the corresponding object property values.

For parts this field shows the total upper surface area (perpendicular to the global Z-axis).

ASSEMBLY content type

• Shows the total upper surface area (perpendicular to the global Z-axis) of the parts included in an assembly.