Standardized kitchen cabinet dimensions often fail to accommodate the anthropometric diversity of contemporary users, resulting in suboptimal reach, posture, and operational comfort. This study proposes a parametric mapping approach that integrates anthropometric data directly into the design logic of kitchen cabinets. Key body measurements—such as standing height, elbow height, functional reach, and shoulder breadth—were analyzed and mapped to critical cabinet parameters including countertop height, cabinet depth, shelf accessibility, and handle positioning. Using regression modeling and rule- based constraints, these anthropometry–geometry relationships were incorporated into a parametric framework built in Grasshopper. The system enables real-time adjustment of cabinet configurations based on individual measurements or population percentiles. Validation through posture simulation and expert assessment indicates that the parametric designs substantially reduce awkward postures and improve ergonomic fit compared with static, one- size-fits-all standards. The results demonstrate that anthropometric integration offers a viable pathway toward mass customization in kitchen design. The proposed parametric mapping framework not only enhances user comfort and accessibility but also provides a scalable method that can be extended to other furniture, interior systems, and human-centered built-environment applications.