Stores function as buildings for keeping inventories and materials. They are important for ready accessibility of materials, efficient space utilization, and flexibility. Stores receive raw materials, provide storage and preservation, and meet production demands. They aim to minimize obsolescence and surplus through proper codification and stock monitoring. Stores layouts can be fixed, zoned, or random based on supplier, item similarity, size, and frequency of use. Efficiency is measured through stock verification and classification/codification of materials.