Appendix D
Space Utilization Index
The Space Utilization Index (SUI), under development by the U.S. Coast Guard, compares actual to allowable space. Actual space measurements are made during a space utilization assessment. Allowable space is based on the commandant space standards, which define approved space allowances on the basis of personnel and other factors. The SUI is calculated by dividing actual square feet by allowable square feet.
The SUI measures compliance with commandant space standards, which ensures equitable distribution of space (and funding) across the agency. The SUI can be used to collect data on existing space and to update the standards to better support operations and mission readiness objectives. An SUI of 1.00 means the space exactly complies with commandant space standards. In practice an SUI range is established to account for reasonable departures for the standards due to suitability issues and local variations. For example, an SUI range between 0.95 and 1.15 is considered reasonable.
In practice SUI will be used along geographical boundaries, command structures, and space categories. Each perspective will provide insight into how the space is being used, identify gaps or opportunities, and provide a structure to pursue targeted space planning and management activities.
