I can't see one Tessi - I even tried a Custom Linetype with two lines and a +10 and -10 offset. It was thicker, but not much thicker. See if the rest of the World has any ideas.
Max I've seen made is the 120 width by using the method Shanoc mentioned. Otherwise for that size of area being covered it might make sense to use a polygon with a fill color.
the Polygon with a fill colour won't work as I'm using the line as a measurement tool. Thanks for the suggestion.
