A method, computer program, and system for optimizing kit nesting. The method, computer program, and system include defining a priority for each kit in a plurality of kits. Each of the plurality of kits is associated with at least one machine in a machine family, such that each machine family is associated with a set of kits. A first optimized nest is determined for each machine in each machine family by providing all machine-compatible parts in the highest priority kit to a nesting engine, allowing the nesting engine access to one or more subsequent priority kits to be arranged into the first nest. A second optimized nest is determined for at least one machine by providing all remaining machine-compatible parts in the highest priority kit to a nesting engine, allowing the nesting engine access to one or more subsequent priority kits to be arranged into the second nest.