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BoundingBox
The BoundingBox command creates a box that encloses all selected objects, or each object in selection.

BoundingBox, CPlane orientation
Creates a polyline or solid that encloses objects, using construction plane orientation.

Box
Draw a solid box.

Box, 3 points, height
Draws a solid box from three points and height.

Box, center, corner, height
Draws a solid box from center, corner, and height.

Box, Diagonal
Draws a solid box from diagonal corners.