Authors : Putri Zahira; Dwi Indra Prasetya; Rudy Effendy Listyanto

Volume/Issue : Volume 9 - 2024, Issue 7 - July

Google Scholar : https://tinyurl.com/mrykrrwb

Scribd : https://tinyurl.com/25yv7c8m

DOI : https://doi.org/10.38124/ijisrt/IJISRT24JUL1144

Abstract : Cardboard packaging companies are companies thatproduces various types of packaging products including Master Boxes, Archive Boxes, Mosnon Boxes, Small Cartons, Big Cartons). Cardboard packaging companies have not implemented good inventory management when purchasing E-Flute raw materials, soInventory control in these companies often experiences problemsnamely ordering and using inappropriate raw materials, sometimes in excess and sometimes in shortage. Optimum material requirements planning is carried out using the Material Requirement Planning (MRP) method. This method begins by forecasting the number of requests for the future. This forecasting is carried out using the Moving Average, Exponential methodSmootingand Linear Regression. After knowing the price of raw materials, data on material requirements, and costs for inventory and material storage, then a comparison of inventory planning costs is carried out using the Lot For Lot (LFL) method.AndEconomic Order Quantity (EOQ). From the calculation results of the two methods, the method that produces the minimum inventory costs is selected. The Lot For Lot (LFL) technique produces the lowest total inventory costs, namely Rp4.800.000,-

Keywords : Lot Sizing, Material Requirement Planning (MRP), Forecasting.

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