The AASHTO "Green Book" (A Policy on Geometric Design of Highway and Streets) has "turning templates" for various types of vehicles. These are meant to represent the turning behavior of most vehicles in the class represented. One of them shows a light truck towing a trailer.
Some commercial suppliers sell turning templates printed on acetate in common engineering scales. You place the template on your intersection plan, and make sure the vehicle can make the turn without hitting the curb.