A warehouse is a place where you store your inventory items. This might be shed, barn, silo, tank, refrigerated storage, closet within a building, or even a storage facility off your property like a grain elevator. Warehouses can also be optionally subdivided into bins, which allow you to be more granular with your inventory storage. You might keep your fertilizer in your barn, but knowing what section of the barn it's in may help you - and your farm workers - find it faster. You'll be able to track the capacity of the warehouse and bins as well. You can also set up filters on your warehouses to define what inventory items can be stored there.