Over the past decade, winners of the Society of Critical Care Medicine's critical care unit design award have demonstrated an increase in overall square footage, but this trend has been inconsistent. The following analysis compares the space allocation of 15 recently completed critical care units to document trends in overall space allocation and compare the allocation of space between small, medium, and large units. This study indicates that the number of beds, net-to-gross factor, and net square feet per bed of the 15 units examined increased as the departmental gross square feet per bed increased. Within the net or usable square footage allocation, all categories of space increased progressively as the overall space increased, with the exception of direct patient care space and patient care support space categories. Overall, averages are provided to be used as preliminary benchmarks for organizations evaluating their existing critical care units or planning replacement units.