Abstract:
The size of the land area affects the course of the project. An example is the Fox Logger
Office construction project which has a small land area of 196.43 m2. Many obstacles arose
due to these conditions, one of which was that there was no material storage in the project
area. If a project does not have space to store materials, it will result in all materials being
unable to be stored in the project area. In other words, with the remaining space, there is
only a little material that can be stored or material that will be used immediately. Therefore,
the project manager usually works around this by renting a warehouse outside the project
area. However, renting a warehouse means additional costs are incurred during the material
procurement process. In a project, an unexpected cost increase certainly disappoints some
parties. Therefore, in this study, the authors try to reduce the additional costs of renting a
material warehouse. Storage costs will be eliminated by making a very detailed material
ordering schedule according to the needs of each job. This research will be assisted by the
Material Requirement Planning method using the Fixed Period Requirement and Lot-for-
Lot calculation technique. This method is beneficial for reducing material inventory costs in
Fox Logger Office construction projects. After calculation and comparison, the writer saved
IDR 36,000,000 on holding costs using Lot-for-Lot technique. Therefore the authors highly
recommend using a material management system with the MRP method if the conditions in
the project are similar to the Fox Logger Office project.
