Theoretical heights.
I was looking up the legal DOT heights (13.5ft) as well as the minimum recommended clearance between truck and bottom of the 5th wheel overhang (6in) then crossed it with the most recent height measur...
Forum Discussion
Second Chance wrote:
Someone with a CDL and experience straightened me out on this on another forum recently. There is no such thing as a legal "DOT height" from the Federal government. 13'6" is the minimum height for overpasses on the interstate highway system. Some states have their own regulations. That said, there is no such thing in my books as a "theoretical height." The only thing you can rely on is an actual measurement with the trailer on the truck on level ground.
Rob
True. But considering that the DOT requires there to be throughways that are "at least 13.5 feet", I figured that was a good height to go with to make sure that I would at least have a way through most areas (but not all).
When I used the phrases "theoretical heights" I was using the 13'6" as a base measurement to plan a build of a 5er. Not the 13'6" itself.
