The answer is yes; it could be profitable depending on your services to the clients. There are people who have trucking services to load and unload heavy materials and even rocks and stones for home landscaping, gardening, and housing materials that cannot be carried with bare hands. The average net profit margin of a trucking company averages between 2.5 percent and 6 percent. You can have a decent living out of this kind of investment, however, you need to buy a big truck should you want to push through your plan to this investment with your eyes wide open.