Use this procedure to create a Box mass element. The insertion point of the Box mass element is at the centroid of its bottom face.

Box mass element in 3D and plan views
- On the Massing tool palette, select the Box tool.
Alternatively, you can click
.
- Specify the first corner of the Box.
- Drag the cursor and specify the second corner of the Box.
- Drag the cursor and specify the height of the Box.
- Enter a rotation angle, or press Enter to accept the default angle of 0.
- Continue adding Box mass elements, and press Enter.