Increasing costs of constructing and operating shell egg-packing plants make it essential that new or remodeled facilities be carefully planned to achieve maximum efficiency. This study evaluates the layout of a new shell egg-packing plant that demonstrates U.S. Department of Agriculture (USDA) planning concepts. The layout provides for adequate operating space and allows for future expansion at minimal cost. It also provides for the flow of products without backtracking, ease of maintaining sanitation, employee safety and welfare, maintenance of product quality, effective materials handling, and operating efficiency. Labor productivity in the new plant is 8.30 cases per worker-hour compared with 7.03 in the old plant, a gain of 18 percent.