@tig said: Look at http://www.sketchup.com/intl/en/developer/docs/ourdoc/entities#add_faces_from_mesh Thanks for that TIG. I had a look at that and with my simple cube example, it did not quite give me the result i was hoping for. DO i need to manually join the other edges? [image: FxA4R7em.png] @dan rathbun said: Also look at how the SketchUp Team makes shapes in the Shapes plugin example: http://extensions.sketchup.com/en/content/shapes Thanks Dan. I have had a look at that and it seems to describe how to do basic shapes, however what I am looking at is a bit more complex (despite my example) and shaped more like a balloon, or a very irregular shape.