The key distinctions between less-than-truckload (LTL) and truckload (TL) shipments are the quantity of space they require in a trailer and how they are transported. LTL freight is larger than package freight but does not require a complete trailer (usually less than 15,000 pounds). Essentially, numerous smaller shipments are merged to fill a 28-foot puppy trailer. Rates are determined by space used, weight, freight class, accessorials, and the origin and destination — and are frequently pre-established. LTL shipments go via a “hub and spoke” network, which involves many stops at service centers between the shipper and the consignee. Customers who ship LTL like the cost savings and flexibility it provides.