You can manage material dimensions, or material sizes, in the Tekla PowerFab material database in several ways. You can add, modify, and delete dimensions, and add grade overrides or alternates for the dimensions.

• To view and modify dimension properties, go to Maintenance > Shapes/Grades/Sizes and, in the Shape/Grade/Size Maintenance dialog, open the Dimensions tab.

The Shape/Grade/Size Maintenance dialog shows the details of dimensions:

(1) Dimension list: View all available dimensions for the selected shape. To view the properties of a specific dimension, select it in the list.

(2) Alternates tab: View, add, modify, and delete alternate dimensions. When importing a dimension with a description that Tekla PowerFab does not recognize, alternate dimensions allow Tekla PowerFab to identify the imported dimension.

(3) Properties tab: View the properties of the selected dimension.

(4) Grade Overrides tab: View, add, modify, and delete grade overrides. Grade overrides allow Tekla PowerFab to assign a specific unit weight for a specific dimension. Grade overrides should only be used for shapes that do not have linear unit weights, such as stainless steel.