Learning Outcomes
After completing this lesson, learners will be able to:
- Explain the role of warehousing in the supply chain.
- Describe the main warehouse processes.
- Explain how warehouse design affects cost and customer service.
- Identify different warehouse and storage options.
- Describe the requirements of specialised products.
- Explain how technology supports warehouse operations.
- Describe key warehouse health and safety requirements.
- Explain how online ordering affects warehouse design and stockholding.
- Assess warehouse and facilities performance.
1. Warehousing and Facilities
Warehousing is the controlled receipt, storage, handling and dispatch of goods within a designated facility.
A warehouse provides a temporary holding point between different stages of the supply chain.
Warehouse facilities include:
- Buildings
- Storage systems
- Loading and receiving areas
- Materials-handling equipment
- Information systems
- Utilities
- Safety systems
- Security controls
- Employees and work areas
2. Role of a Warehouse
A warehouse supports the supply chain by:
- Receiving goods
- Protecting inventory
- Maintaining inventory records
- Making products available
- Consolidating shipments
- Breaking bulk quantities
- Supporting order fulfilment
- Preparing products for dispatch
- Managing returns
- Providing value-added services
The warehouse connects suppliers, production, transportation and customers.
3. Warehousing and Demand Fulfilment
Warehousing supports customer demand by ensuring that products are:
- Available
- Accurately recorded
- Stored in the correct location
- Maintained in acceptable condition
- Picked accurately
- Packed appropriately
- Dispatched on time
Poor warehouse performance can cause:
- Stockouts
- Incorrect orders
- Product damage
- Dispatch delays
- Customer complaints
- Higher transport costs
- Inventory losses
4. Standard Warehouse Process
Receiving
↓
Inspection and recording
↓
Put-away
↓
Storage
↓
Order release
↓
Picking
↓
Packing
↓
Marshalling
↓
Dispatch
Returns and stock-control activities interact with all stages of the process.
5. Receiving
Receiving begins when goods arrive at the facility.
Activities include:
- Confirming the delivery appointment.
- Directing the vehicle to the correct receiving area.
- Checking delivery documents.
- Unloading the goods safely.
- Counting and identifying items.
- Inspecting condition and quality.
- Recording shortages, excess quantities or damage.
- Capturing the receipt in the inventory system.
- Accepting, rejecting or quarantining the goods.
- Preparing accepted goods for put-away.
Receiving errors affect inventory accuracy and every later warehouse process.
6. Put-Away
Put-away moves received goods to their assigned storage locations.
A suitable location is selected according to:
- Product size
- Weight
- Demand frequency
- Handling requirements
- Compatibility
- Security
- Temperature
- Hazard classification
- Available space
Fast-moving goods are often placed in accessible locations to reduce travel and picking time.
7. Storage
Storage protects inventory until it is required.
Storage controls should ensure:
- Correct location
- Accurate identification
- Appropriate rotation
- Safe stacking
- Product separation
- Environmental protection
- Security
- Accessibility
- Inventory visibility
Products with expiry dates may require FIFO or FEFO rotation.
8. Picking
Picking retrieves products from storage to fulfil an order.
Common picking methods include:
Discrete Picking
One order is picked at a time.
Batch Picking
Items for several orders are picked together.
Zone Picking
Employees pick products only within assigned warehouse zones.
Wave Picking
Orders are released in planned groups according to schedules, routes or priorities.
The suitable method depends on order volume, product range, layout and customer requirements.
9. Packing
Packing prepares picked goods for transport and delivery.
It may include:
- Verifying products and quantities
- Selecting packaging
- Protecting products
- Sealing packages
- Labelling
- Adding documentation
- Recording package weight and dimensions
Packaging should protect the product without creating unnecessary material or transport costs.
10. Marshalling
Marshalling assembles completed orders in a designated staging area before loading and dispatch.
Orders may be arranged according to:
- Customer
- Route
- Vehicle
- Delivery sequence
- Priority
- Dispatch time
Poor marshalling can cause loading delays, mixed orders or incorrect delivery sequences.
11. Dispatch
Dispatch releases goods from the warehouse for transportation.
Activities include:
- Final order verification
- Document preparation
- Vehicle checks
- Load planning
- Loading
- Load securing
- Recording dispatch
- Issuing transport documentation
- Communicating shipment status
Warehouse and transport schedules must be coordinated to prevent vehicle waiting and delayed delivery.
12. Consolidation and Breaking Bulk
Consolidation
Consolidation combines smaller quantities or orders into larger shipments.
It may reduce transport costs and improve vehicle utilisation.
Breaking Bulk
Breaking bulk divides a large incoming shipment into smaller quantities for different customers or destinations.
Both functions help match supplier quantities with customer requirements.
13. Value-Added Services
Warehouses may perform services such as:
- Labelling
- Repacking
- Kitting
- Product assembly
- Price marking
- Quality inspection
- Customisation
- Returns processing
These activities should be planned and measured because they use space, labour and equipment.
14. Cross-Docking
Cross-docking transfers goods from receiving to dispatch with little or no storage.
It requires:
- Accurate schedules
- Reliable suppliers
- Coordinated transport
- Correct product information
- Suitable facility design
- Rapid sorting
Cross-docking can reduce inventory and storage time, but a late inbound shipment may delay several customer deliveries.
15. Warehouse Types
Public Warehouse
A third-party operator provides storage and related services to different customers.
Suitable when:
- Storage needs are temporary
- Demand varies
- The organisation does not want to own a facility
Private Warehouse
A warehouse is owned or controlled by one organisation for its own goods.
Suitable when:
- Demand is stable
- Storage requirements are substantial
- Greater operational control is needed
Distribution Centre
A distribution centre focuses on rapid product flow and customer-order fulfilment.
Fulfilment Centre
A fulfilment centre processes large numbers of individual orders, commonly for online retail.
Cold-Storage Warehouse
A cold-storage facility maintains controlled temperatures for products such as food, pharmaceuticals and chemicals.
Bonded Warehouse
A bonded warehouse stores imported goods under customs control before duties and taxes are paid or the goods are re-exported.
Automated Warehouse
An automated warehouse uses technologies such as conveyors, robotics and automated storage and retrieval equipment.
Outdoor Storage Yard
An outdoor yard stores goods such as vehicles, construction materials and large equipment.
16. Storage Systems
Pallet Racking
Stores palletised goods vertically and provides access for materials-handling equipment.
Shelving
Suitable for smaller or manually handled items.
Block Stacking
Goods are stacked directly on the floor in organised blocks.
Mezzanine Storage
An additional internal floor creates more usable space without increasing the building footprint.
Bulk Storage
Suitable for loose, liquid or large-volume commodities.
Secure Storage
Provides restricted access for high-value or controlled products.
The storage system must suit the product and operating process.
17. Warehouse Design
Warehouse design determines how space, people, inventory, equipment and information flow through the facility.
Design decisions include:
- Facility location
- Building size
- Receiving and dispatch areas
- Storage capacity
- Aisle width
- Racking
- Picking areas
- Marshalling space
- Vehicle access
- Employee facilities
- Safety routes
- Security controls
- Expansion capacity
18. Layout Principles
An effective layout should:
- Support logical product flow
- Reduce unnecessary movement
- Prevent congestion
- Separate people and vehicles
- Use available height appropriately
- Provide safe access
- Position fast-moving products efficiently
- Support accurate picking
- Allow emergency access
- Provide sufficient staging space
A poorly designed layout can increase labour, handling, damage and order-processing time.
19. Location Decisions
Warehouse location affects:
- Inbound transport cost
- Outbound delivery cost
- Customer response time
- Supplier access
- Labour availability
- Property cost
- Infrastructure access
- Security
- Utilities
- Risk exposure
A central warehouse may reduce facility costs but increase delivery distance. Regional facilities may improve customer response time but increase total inventory and operating costs.
20. Specialised Products
Specialised products require particular storage or handling because of their characteristics.
Temperature-Sensitive Products
Examples include food and pharmaceuticals.
Requirements may include:
- Refrigeration
- Temperature monitoring
- Backup power
- Restricted access
- Cold-chain records
- Hygiene controls
Hazardous Products
Requirements may include:
- Product classification
- Approved storage
- Warning labels
- Separation of incompatible goods
- Ventilation
- Spill controls
- Emergency procedures
- Trained personnel
High-Value Products
Requirements may include:
- Secure storage
- Restricted access
- Surveillance
- Serial-number control
- Additional inventory checks
Fragile Products
Requirements may include:
- Protective packaging
- Special handling
- Stacking limitations
- Clearly marked locations
Oversized or Heavy Products
Requirements may include:
- Floor-load assessment
- Suitable lifting equipment
- Wide aisles
- Outdoor storage
- Special movement plans
Perishable Products
Requirements may include:
- Expiry-date control
- FEFO rotation
- Temperature management
- Rapid handling
- Cleaning and hygiene
21. Materials-Handling Equipment
Common equipment includes:
- Forklifts
- Pallet jacks
- Trolleys
- Conveyors
- Cranes
- Hoists
- Automated guided vehicles
- Automated storage and retrieval systems
Equipment selection depends on:
- Product weight
- Product dimensions
- Storage height
- Aisle width
- Movement frequency
- Safety requirements
- Facility layout
Employees must be trained and authorised to use equipment where required.
22. Warehouse Technology
Warehouse Management System
A Warehouse Management System, or WMS, supports:
- Receiving
- Location assignment
- Inventory visibility
- Put-away
- Replenishment
- Picking
- Packing
- Dispatch
- Cycle counting
- Performance reporting
Barcodes
Barcodes identify products, locations and transactions through scanning.
Radio-Frequency Identification
RFID uses electronic tags and radio signals to identify and track goods.
Internet of Things
Sensors may monitor:
- Temperature
- Humidity
- Equipment condition
- Product location
- Energy use
Automation and Robotics
Automation may support:
- Product movement
- Sorting
- Picking
- Storage
- Packing
- Counting
Technology can improve speed, accuracy and visibility. It must be supported by correct master data, maintenance and employee training.
23. Online Ordering and Warehousing
Online ordering often creates:
- More individual orders
- Smaller order quantities
- Wider product ranges
- Shorter delivery expectations
- Higher return volumes
- Greater order-status expectations
- Demand for extended operating hours
Warehouse design may need:
- More picking locations
- Dedicated packing stations
- Automated sorting
- Returns-processing areas
- Faster information systems
- Flexible labour
- Carrier collection areas
Stock may need to be positioned closer to major customer markets to support faster delivery.
24. Warehouse Health and Safety
Warehouse controls should address:
- Vehicle and pedestrian separation
- Safe stacking
- Racking condition
- Fire prevention
- Emergency exits
- Lighting
- Ventilation
- Hazardous substances
- Manual handling
- Materials-handling equipment
- Personal protective equipment
- Spill response
- Housekeeping
- Employee training
- Incident reporting
Facilities must comply with applicable occupational health, safety, fire, environmental and product-specific requirements.
25. Warehouse Security
Security measures may include:
- Access control
- Visitor management
- Surveillance
- Perimeter protection
- Restricted storage
- Inventory counts
- Seal control
- Document control
- Incident investigation
- Cybersecurity for warehouse systems
Security should protect employees, inventory, equipment and information.
26. Warehouse-Process Interaction
Warehouse processes are interdependent.
For example:
- Receiving errors create inventory inaccuracies.
- Poor put-away makes products difficult to locate.
- Incorrect storage can cause damage.
- Picking errors result in customer complaints.
- Poor marshalling creates loading delays.
- Late dispatch affects transport schedules and delivery performance.
Performance improvement should address the complete process rather than one activity in isolation.
27. Warehouse Performance Management
Performance management involves:
- Establishing standards and targets.
- Collecting accurate information.
- Comparing actual performance with targets.
- Identifying deviations.
- Investigating causes.
- Implementing corrective actions.
- Monitoring improvement.
28. Warehouse Performance Measures
| Measure | What it evaluates |
|---|---|
| Inventory accuracy | Agreement between physical and system inventory |
| Receiving time | Time taken to receive and record goods |
| Put-away time | Time taken to move received goods into storage |
| Picking accuracy | Correct items and quantities picked |
| Order-fulfilment rate | Customer orders completed as required |
| Order cycle time | Time from order release to dispatch |
| Storage utilisation | Extent to which storage capacity is used |
| Labour productivity | Work completed relative to labour input |
| Equipment uptime | Time equipment remains available |
| Damage rate | Goods damaged during warehouse operations |
| Safety incidents | Accidents and unsafe events |
| Cost per order | Warehouse cost associated with order processing |
| Energy consumption | Energy used by the facility |
Measures should be considered together. High productivity is not acceptable if it results in poor accuracy or unsafe work.
29. Continuous Improvement
Warehouse improvements may include:
- Revising the layout
- Improving product-location rules
- Training employees
- Correcting inventory records
- Improving schedules
- Introducing technology
- Maintaining equipment
- Reducing unnecessary movement
- Improving housekeeping
- Reviewing safety controls
- Coordinating suppliers and carriers
The effect of each improvement should be measured.
30. Lesson Summary
- Warehouses receive, store, protect, pick, pack and dispatch goods.
- Standard processes include receiving, put-away, storage, picking, marshalling and dispatch.
- Warehouse design affects handling cost, capacity, safety and customer service.
- Different warehouse and storage options serve different operational requirements.
- Specialised products require suitable storage, handling, security or environmental controls.
- Technology improves visibility, accuracy and productivity when supported by reliable information.
- Online ordering increases demand for rapid, accurate individual-order processing.
- Warehouse health, safety and security must be actively controlled.
- Performance management uses reliable measures and corrective action to improve operations.