A Warehouse Floor Plan for Seite's supplies. A warehouse is a business structure used to store products. Manufacturers, importers, exporters, wholesalers, transportation companies, customs, and others use warehouses. They are often massive, simple structures in industrial regions of cities, towns, and villages. Loading docks are commonly used to load and unload items from lorries. Warehouses are sometimes constructed to load and unload products directly from trains, airports, or seaports. Cranes and forklifts are often used to move items, which are typically put on ISO standard pallets loaded onto pallet racks. Raw materials, packing materials, spare parts, components, and completed commodities related with agriculture, manufacturing, and industry can all be stored.