Area loads affect triangular or quadrangular areas. If you select the triangular load form, the points you pick define the loaded area. To create a quadrangular load form, pick three points, and Tekla Structures automatically determines the fourth corner point.

1. On the Analysis & design tab, click Load properties > Area load.
2. In the Area Load Properties dialog box:
   1. Enter or modify the load properties.
   2. On the Distribution tab, select whether you want to attach the load to a part.
   3. Click OK to save the changes.
3. On the Analysis & design tab, click Load > Area load.
4. If you selected to attach the load to a part, select the part.
5. Pick three corner points for the load.