This refers to the configuration of the warehouse site with lines, storage areas, aisles, etc. Layout or storage plan of a warehouse should be planned to facilitate product flow. Special attention should be given to location, number, and design of receiving and loading docks.
Source: http://www.apics.org/ (10th ed.)
Bowersox, D.J., Closs, D.J., & Cooper, M.B. (2002). Supply Chain LogisticsManagement. Burr Ridge, Boston: McGraw Hill.