Hi Philip,nYes, you are correct. I was not printing the orientation node information in my files (I was printing a 0 for orientation node ID), as I had (mistakenly) assumed that the orientation info should not affect drawing the beam elements as prisms.nI have now fixed this issue (I print the orientation node in my binary files), and I can verify that type = 0 gives a solid rectangular section.nI also need to correct my previous message: type = 9 does NOT correspond to a solid circular cross-section. If one wants to draw a solid circular section, they must set type = 24. nThank you for all your help on this.nYannisn