Height = T
The standard height for trailers is 55".
You can use this figure as a reference point for standard trailer
height. On refrigerated or container trailers, the standard
height is 59".
T is the measurement from the ground
to the bed of the trailer.
Dock Height = D
The dock height is calculated by measuring
the distance from the ground to the top of the dock.
Height Differential (Maximum)
Truck Height(T) - Dock Height(D) = Height