Concept
Less-than-truckload shipping or less than load (LTL) is the transportation of an amount of freight sized between individual parcels and full truckloads. Parcel carriers handle small packages and freight that can be broken down into units less than approximately . Full truckload carriers move entire semi-trailers. Semi-trailers are typically between and require a substantial amount of freight to make such transportation economical. The term LTL can refer to the freight itself, or to the carrier that transports the such freight. Full truck load (FTL) carriers typically haul loads for one single shipper. In these cases, the shipper "rents" a trailer to transport their product where it needs to go, typically paying a "per mile rate" from the carrier. However, with LTL, a single trailer can carry several different shippers' shipments and since each shipment is technically "less than a truckload" they would consider that to be LTL. Due to the basic differences between these two modes, there are freight carriers who either specialize in FTL or LTL. While these carriers can crossover and handle freight shipments from the other mode, typically they operate under one mode. Oftentimes an LTL carrier can be references as a "common" carrier, one who handles common freight above what would normally ship via FedEx Ground, or UPS or U.S. LTL common carriers are also more likely to accept loose (non-palletized) cargo than the other two modes, FTL and parcel. Less than Truckload carriers use "hub and spoke" operations where linehauls/truck routes are the spokes, and service terminals for each carrier are the hubs (also called Distribution Centers or DC's). Terminals collect local freight from the various shippers they work with in an area and use the hub to consolidate the freight into regions or areas where those shipments are destined to be delivered. Because of the efficiency of this order of operations, most deliveries are performed in the morning and most pickups are made in the afternoon.
