Directions of M22 and M33 moments, You can also see it by looking at the moment diagrams in the 3D visualization. In the attached screenshots, the directions are shown as an example on a single column: If the long side of the column is parallel to the X axis, then M33 will be the X moment, that is, the moment around the Y axis, M22 will be the Y moment, that is, the moment around the X axis.