Stocking wastage in question is a stock that exceeds the capacity or an abnormal condition that is produced. Of course, not only the existing stock in the warehouse. But also all the stock which is still in process. All stock must strive to normal because if these conditions persist will lead to stability disrupted production.
Stocking wastage is not only material or product ready for sale but could be spare parts, tools and others. As described earlier in the warehouse stock issues should refer to the management fully based on the concept of 5S. And all the wastage that has to do with the stock must remove.