A system 10 and method for laser cutting a plurality of parts, for example metal chassis components, using a plurality of laser cutting apparatuses is provided. The system 10 includes a plurality of the laser cutting apparatuses 14 disposed in a single enclosed cell 12 for simultaneously trimming multiple parts. The system 10 also includes at least one inner chamber 22 and at least one set of double doors 16, 18 for transferring the parts in and out of the enclosed cell 12 without any light escaping the cell 12. The parts are conveyed through the first door 16 to the inner chamber 22 while the second door 18 is closed, and through the second door 18 to the enclosed cell 12 while the first door 16 is closed. The system 10 also includes robots 24 continuously preloading and unloading the parts to maximize the laser trimming time.