Hotel bar managers often discover that the capacity spec of back bar refrigerators (listed in liters or cubic feet) does not match the number of bottles that actually fit. The discrepancy usually comes from shelf layout, compressor hump, and false expectations about bottle stacking. I have spent over twenty-six years manufacturing commercial refrigeration equipment, and I can say that real-world capacity is about how shelf depth, bottle shapes, and door type work together, not about a rated volume. This article examines back bar refrigerator capacity planning and layout decisions that help hotel bars avoid under-stocking during peak service, using lessons from thousands of custom bar cooling projects. Determining Realistic Capacity Needs for a Hotel Bar