Warehousing is often necessary to provide items in time, in the right amount and in the right conditions to the customer it is also a strategic business for cost reduction in distribution. To be Lean in warehousing is to improve the processes that are necessary for maintaining the warehouse’s purposes and to avoid processes that can be avoided without reducing the warehouse’s ability to perform its function. Possible tools for further leverage Lean in warehousing should then be tools that primarily improve the flow and increase the visibility; this together with efforts for avoiding processes and wastes. The tools suggested in chapter 6.4 is intended for improving the flow and increase the visibility if the workload in the picking process