Most eco-friendly office fittings fail because they prioritize materials over process. This article reveals how a shift to custom CNC machining, using advanced nesting algorithms and closed-loop coolant systems, slashed material waste by 22% and reduced energy consumption per part by 15% in a real-world project. Learn the specific engineering trade-offs, the data behind the savings, and the lessons from a year-long retrofit that changed how we think about sustainability in hardware.