A system including one or more processors and one or more non-transitory computer-readable media storing computing instructions configured to run on the one or more processors and perform certain acts. The acts can include obtaining a route for delivering one or more orders in a tri-temp trailer from a distribution center to physical stores in a sequence of stops. The route can have an associated assignment of stack groups comprising stacks of pallets. The acts also can include determining a load design for the stacks in the tri-temp trailer based on the sequence of the stops in the route, such that unloading each of the stacks is minimized when the tri-temp trailer delivers the orders to the physical stores. The acts additionally can include outputting the load design to cause the stacks to be loaded in the tri-temp trailer according to the load design for delivery to the physical stores in the sequence of stops. The load design can specify a respective floor spot assignment for each of the stacks. Other embodiments are described.