Perencanaan Kebutuhan Material Besi Dengan Material Requirement Planning: Perbandingan Teknik LOT For LOT Dan Least Unit Cost Pada Pembangunan Laboratorium Teknik Sipil
DOI:
https://doi.org/10.31004/koloni.v5i4.1555Keywords:
material requirement planning, lot for lot, least unit cost, material control, reinforced concreteAbstract
unplanned material procurement in construction projects leads to cost overruns and work delays. This study aims to desig a material control model using the Material Requirement Planning (MRP) method and to determine the most efficient lot sizing technique for Engineering Laboratory And Workshop Building In Manado. The study employed a requirements, netting, lot sizing, and offsetting with a two-week lead time. The material examined was reinforcing steel, with an ordering cost of IDR 750,000 per order and a holding cost calculated from the cost of capital and depreciation. The results show that the net requirement for reinforcing steel from period 4 to period 12 was 105,996 kg. The Lot For Lot (LFL) technique resulted in a total cost of IDR 2,223,006.34, making LUC the most efficient technique, Therefore, MRP can serve as a basis for material procurement planning, and the selection of a lot sizing technique should consider the material cost burden.Downloads
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