There aren't many couriers that can make a living anymore staying restricted to moving small packages that can be moved easily by hand. This need to diversification means that more and more couriers are also branching into full scale transportation businesses. That means that a company that might to have been a regular delivery company in the past may have branched out to being a trucking company that can also move large machinery, vehicles and equipment. This especially makes sense for a courier company that is doing business in a center like Chicago where manufacturing and large scale industries are such a part of the local economy.
There are so many industries now which require the use of larger and larger pieces of machinery and components. Oil rigs are getting larger and more sophisticated as we attempt to drill deeper in harder to reach places, ships are being built larger and larger to handle the transportation of larger and larger goods, and manufacturing facilities are being built to produce larger quantities of product and so require bigger components in their factories. One thing that people need to realize is that all of these parts are built somewhere, and they all need to be shipped somewhere, and therefore there is a larger faction of the transportation industry which is dedicated to moving these types of loads around the country.
The movement of large equipment and machinery is something that most good large scale transport companies can do, but there are obviously going to be some extra costs associated with moving these types of goods, just as there are with producing them and using them. First of all, specialized trailers are going to be needed to haul them, typically a flat deck so that they can fit things on which are wide loads. Then, they are going to need the use of special equipment to load and unload those types of loads, such as cranes, liftgates, and other similar tools. Wide loads require extra permits in order to be able to haul them down the highway, and can represent further costs because of the extra personnel needed to move those types of shipments. Wide loads typically need pilot vehicles ahead of and behind the main truck to signify to the remainder of the traffic on the road that there is a slow moving vehicle in their path. The price of the extra vehicles and workers must be accounted for.