A bounding box is the volume around a load where Tekla Structures searches for load-bearing parts.
In addition to selection filters or part name filters, you can use a load’s bounding box to search for the parts that carry the load.
Each load has its own bounding box. You can define the dimensions of a bounding box in the x, y, and z directions of the current work plane. The dimensions are measured from the reference point, line, or area of the load.
Offset distances from the reference line or area do not affect the size of the bounding box.