This is one thing I don't have to worry about with my low height setup haha...
I used to see something on the Interstates that measured your height as you drove under it and it would flash how tall you was... Don't remember where that was at. Actually after thinking abut this it didn't tell how high you but did flash a warning light at you if you was too tall which is 13-foot something I think...
I reckon the best way to know for sure is use the tape measure...
I might drag a couple of my Ham Radio antennas going through a McDonalds Drive through but that's about it...
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