What is the maximum permissible height for my unit according to legal regulations?

As per the Department of Transportation (DOT) regulations, the maximum legal height for your unit, without special permits, is 14 feet. However, considering factors such as tire pressure and weight distribution, we strongly advise and construct our units to a height of 13 feet 6 inches, measuring from the bottom of the tire to the highest point, inclusive of solar panels and skylights.