Many studies have been done to characterize the vibration of a trailer during transit. These studies form the basis for many industry standard package tests. In reality, many packages do not rest directly on the trailer during transit. For example, freight can be stacked onto other freight, onto decking beams, or decking tables. Through extensive related field data gathering, this study attempts to understand how the vibration conditions of a wider range of common loading conditions may change package designs and testing.