Why is there an additional cost to ship to locations without a freight dock? | Fusion3

The lowest cost option is to ship via an LTL carrier to a location with a freight dock. The 18-wheeler does not need a liftgate to make this delivery. If the printer is to be delivered to either a residence or small business that does not have a freight dock, the freight shipper charges an extra fee as they will either have to transfer the printer to a smaller truck or ship on an 18-wheeler with a liftgate. The same fee applies for Educational institutions. The freight shipper assumes that they will have to use a smaller truck to navigate tight parking lots or narrow roadways.