All Airstream Travel Trailer exterior lengths are measured from the center of the hitch to the end of the rear bumper. For models without bumpers, the travel trailers are measured to their furthest exterior rear points.
While most of the model floor plan names indicate the trailer length, please see each floor plan specifications page to view the exact dimensions.
Travel Trailers - https://www.airstream.com/travel-trailers/
Touring Coaches - https://www.airstream.com/touring-coaches/