Container Loading
Interlink編集部What Is Vanning?
Vanning refers to the process of loading cargo into an empty container for FCL export shipments.
In FCL transportation, an empty container arranged by the shipping line or NVOCC is transported to the shipper’s factory, warehouse, or a freight forwarder designated warehouse to load cargo into the container.
In practice, this operation is called "container stuffing," "container loading," "vanning," "stuffing," or "container stuffing."
Vanning is not merely a loading task. How the cargo is loaded, weight distribution, lashing, container condition, seal numbers, VGM, and CY in-gate all affect subsequent transport quality and whether the shipment is accepted for loading on the vessel.
If loading is improper, it may lead to cargo shifting, damage, uneven load distribution, overweight, container damage during transit, or poor devanning performance after unloading. Therefore, vanning is a critical step determining the quality of FCL transportation.
Scope Covered in This Article
| Item | Contents Covered in This Article | Details Covered in Other Articles |
|---|---|---|
| Basics of Vanning | The meaning of loading cargo into an empty container and its role in FCL export | The overall flow of FCL transport is covered in detail in the “FCL” article. |
| Vanning Locations | Differences when performed at shipper’s factory, shipper’s warehouse, freight forwarder’s designated warehouse, or warehouse near the port | Drayage, warehouse entry, and additional inland delivery charges are covered in separate articles. |
| Pre-vanning Checks | Confirming cargo quantity, weight, volume, packaging condition, cargo form, and loading sequence | Details on cargo weight and gross weight are covered in “Container Weight Restrictions.” |
| Empty Container Condition Check | Checking for holes, floorboard damage, door malfunction, water leaks, odors, dirt, and residue | Container damage, EIR, and photo documentation are covered in “Container Damage.” |
| Stowage and Weight Distribution | Cargo placement, center of gravity, floor load, door-side safety, and preventing uneven loads | Overweight, uneven loading, transport feasibility, and cost allocation are discussed in “Overweight and Uneven Loading.” |
| Lashing and Load Shift Prevention | Checks on lashing, blocking, dunnage, airbags, and pallet securing | Cause analysis of cargo accidents or damage is covered in cargo accident-related articles. |
| Relation to VGM | Total container weight after vanning, weight information, and link to CY in-gate | VGM submission methods, finalization, and relation to CY cut-off are detailed in “VGM.” |
| Container Seal | Sealing after vanning completion, seal number confirmation, and reflecting in documents | Seal number verification, damage, and mismatch handling are covered in “Container Seal.” |
| Relation to CY In-gate | Process management of delivering the loaded container to CY cut-off after vanning | CY in-gate, CY cut-off, and schedule changes after booking are covered in separate articles. |
The Role of Vanning in FCL Transport
In FCL transport, vanning is an essential process carried out after picking up the empty container and before CY in-gate.
On the export side, the empty container is collected, cargo is loaded, the container seal is applied, and the container is brought into the CY in time for the CY cut-off.
From the viewpoint of the shipping line's maritime transport alone, container management appears to begin only after CY in-gate. However, in actual operational practice for shippers and freight forwarders, how cargo is loaded into the container is critically important.
Causes of cargo claims may not always be due to accidents during maritime transport but could stem from improper loading during vanning, inadequate lashing, poor weight distribution, or insufficient packaging.
Comparison by Vanning Location
| Vanning Location | Main Characteristics | Points to Confirm | Practical Considerations |
|---|---|---|---|
| Shipper’s Factory | Loading directly into the container at the manufacturing or shipping site | On-site space, vehicle access, loading equipment, workforce, working hours | Reduces cargo movement, but prior confirmation is necessary to ensure container trucks can enter. |
| Shipper’s Warehouse | Gathering cargo at inventory storage before loading into the container | Cargo preparation, quantity verification, storage location, forklift availability, loading sequence | If cargo is not ready, vehicle waiting or delayed CY cut-off may occur. |
| Freight Forwarder’s Designated Warehouse | Receiving cargo into a warehouse first, then performing container stuffing there | Warehouse receipt date, inspection, sorting, storage charges, vanning costs | Effective for consolidating cargo from multiple suppliers and inspection, but incurs additional costs. |
| Warehouse Near the Port | Vanning near the port with subsequent in-gate to the CY | Receipt timing, storage duration, drayage distance, CY cut-off | May be used during port congestion or when consolidating multiple cargoes. |
| Bonded Warehouse | Sometimes used for handling cargo under bonded control | Bonded cargo entry, customs status, cargo management, customs procedures | Work timing should be confirmed in relation to customs clearance and bonded management. |
Points to Confirm Before Vanning
Before vanning, verify the cargo quantity, weight, volume, packing condition, cargo form, and loading sequence.
Check that the quantities on the packing list match the actual cargo, confirm the cargo is ready for shipment, and inspect for any damage or moisture.
It is also important to ensure the container size matches the cargo. The loadable volume and weight differ among 20-foot, 40-foot, and 40-foot high cube containers.
For heavy cargo, the weight limit is usually the first constraint, whereas for light but bulky cargo, volume often becomes the limiting factor. Therefore, cargo weight, packed weight, cargo dimensions, and container type should be confirmed together.
Inspection of Empty Container Condition
Before vanning, the condition of the empty container should be inspected.
If there are holes in the outer panels, floor damage, door malfunctions, leaks, unusual odors, dirt, residues, or internal moisture, loading cargo as is could lead to cargo claims.
Particular attention should be paid to moisture, odors, and dirt when handling paper products, apparel, food-related cargo, precision machinery, and chemicals.
If any issues are found with the container’s condition, photos should be taken prior to vanning, and container replacement should be considered as needed. Verification of empty container damage, photo documentation, the relationship with the EIR, and issues related to repair and cleaning costs upon return are covered separately in the article “Container Damage.”
Main Items to Check During Vanning
| Check Item | Details to Confirm | Documents or Physical Items to Verify | Possible Impact if Issues Occur |
|---|---|---|---|
| Cargo Quantity | Whether the quantity matches between the packing list and the actual cargo | Packing list, actual cargo, warehouse receipt records | Shortage in quantity, document discrepancies, claims after shipment |
| Cargo Weight | Weight of individual cargo, weight after packaging, pallet weight, total weight | Weight sheet, packing list, weighing records | Excess weight, VGM discrepancies, possible shipment refusal |
| Cargo Volume | Whether the dimensions and volume fit inside the container | Cargo dimension sheet, stowage plan, container type | Leftover cargo, additional container needed, rearrangement costs |
| Packing Condition | Absence of damage, moisture, dirt, label defects, insufficient packing strength | Actual cargo, photos, inspection records | Cargo damage, insurance verification, refusal of receipt |
| Stowage | Placement of heavy, light, and fragile cargo | Stowage diagram, cargo details, on-site confirmation | Cargo collapse, breakage, uneven loading |
| Lashing | Whether cargo is secured to prevent movement during transport | Lashing materials, dunnage, work photographs | Movement during transport, crushed boxes, liquid leaks, container wall damage |
| Container Condition | Absence of holes, moisture, odors, floorboard damage, door defects | EIR, photos of empty container, physical inspection | Cargo damage, container replacement, damage expenses |
| Seal Number | Whether the seal number after sealing is correctly reflected in the documents | Seal photos, B/L instructions, packing list | Document discrepancies, verification issues during customs clearance and delivery |
Stowage and Weight Distribution
When performing vanning, it is not enough to simply place the cargo inside the container.
The cargo must be stowed considering weight distribution, prevention of shifting during transit, floor load limitations, and safety near the container doors.
If the weight is concentrated on one side, uneven loading issues arise. Uneven loading can significantly affect road transport, port handling, ship stowage, and safety management, making it a serious concern.
Generally, heavier cargo should be placed at the bottom and lighter cargo on top; however, stowage methods vary depending on cargo shape, strength, center of gravity, and packing condition. Details on weight restrictions and uneven loading are organized in separate articles, “Container Weight Restrictions” and “Overweight and Uneven Loading.”
Lashing and Prevention of Cargo Shift
During transportation, vibrations, shaking, braking, and shocks during cargo handling may cause cargo inside the container to move.
Therefore, lashing, blocking, dunnage, airbags, pallet securing, and other measures should be applied as necessary.
When cargo shifts, it can cause crushed boxes, damage, abrasion, liquid leaks, or impact against the container’s inner walls.
It is especially important to consider securing methods in advance for machinery, heavy cargo, drums, liquid cargoes, and fragile goods.
Differences between Vanning, Stuffing, and Devanning
| Term | Meaning | Typical Context | Practical Notes |
|---|---|---|---|
| Vanning | The operation of loading cargo into an empty container | Container packing for export FCL | Commonly referred to as "Vanning" in Japanese logistics practice. |
| Stuffing | The operation of packing cargo into a container | Widely used English term in international logistics | Sometimes explained as Container Stuffing in English articles. |
| Devanning | The operation of opening a loaded container and removing cargo | Unloading for import FCL | This is the reverse process of vanning. |
| Unstuffing | The operation of removing cargo from a container | Import FCL, warehouse unpacking | Often used synonymously with devanning. |
The Importance of Photographic Records
During vanning, it is common to take photos before, during, and after the operation.
Recording the cargo's packing condition, loading arrangement, lashing status, container interior, container number, and seal number can serve as reference materials in case of accidents.
Photographic records are especially important for high-value cargo, machinery, easily damaged goods, cargo prone to water damage, or cargo that may become subject to claims later.
If a cargo incident occurs, these photos help clarify whether the damage existed before vanning, was caused by loading issues, or happened during transportation.
Relationship with Cargo Insurance
Records made during vanning can sometimes be important when handling cargo insurance claims.
If damage such as breakage, water damage, cargo collapse, abrasion, or leakage occurs, it is necessary to determine whether the cause of the incident was an external accident during transport, insufficient packaging, or improper stowage during vanning.
For this reason, taking photos to document the condition of the cargo before vanning, the stowage status, presence or absence of lashing, the interior condition of the container, and the state after seal application can be useful for explaining the circumstances of the incident to the insurance company and other involved parties.
Whether the damage is covered by marine cargo insurance will be determined based on the insurance terms, cause of the accident, timing of damage discovery, packaging and stowage condition, photographic evidence, Survey Report, and other factors. Insufficient vanning records may make it difficult to isolate the cause of the incident.
Relationship with Container Seals
Once the vanning is completed, the container doors are closed and a container seal is affixed.
The seal number may be reflected on the B/L, packing list, export documents, and shipping documents.
If the seal number is incorrect, it may cause difficulties in reconciling the documents with the actual container.
Therefore, after vanning, the container number and seal number must be carefully verified and accurately communicated to the freight forwarder, customs broker, shipping line, or NVOCC.
Relation with VGM
In FCL export, submitting the VGM is also crucial.
VGM refers to the verified gross mass of the container. It confirms the weight information required for shipment, including cargo weight, packaging weight, pallet weight, lashing materials, dunnage, and the container’s tare weight.
If the weight information at the time of vanning is inaccurate, it can affect the VGM submission details.
Excess weight or discrepancies from the actual weight may result in shipment refusal, additional verification, or schedule delays. Procedures for submitting VGM, methods for verification, and its relation to the CY cut-off will be outlined in a separate article titled “VGM.”
Relationship with CY In-Gate
The fully loaded container after vanning is brought into the container yard (CY) in time to meet the CY cut-off deadline.
Delays in cargo preparation, vanning operations, container sealing, VGM, or drayage arrangements may cause disruptions to CY in-gate.
Missing the CY cut-off could result in the container not being loaded onto the scheduled vessel, potentially leading to rollover, additional drayage charges, storage fees, and delivery delays.
Therefore, vanning should not be considered separately from CY in-gate; instead, it must be managed as part of the entire export FCL shipping process.
Common Misunderstandings
| Common Misunderstandings | Actual Perspective | Practical Considerations |
|---|---|---|
| Vanning is simply putting cargo into the container. | It involves stowage planning, weight distribution, lashing, sealing, VGM, and CY in-gate processes. | Manage it not just as a site operation, but as a process that determines transport quality. |
| As long as cargo fits in, there is no problem. | Even if it fits volumetrically, weight limits, uneven loading, floor load capacity, and cargo shifting can cause issues. | Check not only cargo dimensions but also weight and stowage pattern. |
| Empty containers can be used as-is. | Holes, moisture, odors, damaged floorboards, and contamination can lead to cargo damage. | Inspect container condition before vanning and replace it if necessary. |
| Loading heavy cargo at the back is safer. | Stowage must consider center of gravity, floor load, axle load, and door-side safety. | Verify stowage diagrams and load balance. |
| Lashing is only necessary for heavy cargo. | Even light cargo can move during transport, causing abrasion or box deformation. | Select securing methods based on cargo characteristics. |
| Photo records can be taken after an accident occurs. | Photos showing the pre-accident condition are crucial for root cause analysis. | Keep records before, during, and after the operation. |
| VGM can be handled solely by the freight forwarder. | Accurate weight information depends on the shipper’s cargo data and the vanning results. | Confirm cargo weight, packaging weight, and container tare weight. |
| Seal numbers can be checked afterwards. | Confirming seal numbers immediately after sealing prevents document discrepancies and verification troubles. | Photograph container and seal numbers and share with relevant parties. |
Checklist for Decision-Making at Each Confirmation Stage
| Confirmation Stage | Party to Confirm With | Items to Confirm | Actions if Problems Arise |
|---|---|---|---|
| Quotation Stage | Shipper, Freight Forwarder, Warehouse | Cargo weight, dimensions, volume, packaging form, vanning location, special conditions | If standard vanning is not feasible, confirm warehouse handling and additional charges. |
| Empty Container Pickup | Drayage Company, Depot, Freight Forwarder | Container number, container type, condition of empty container, EIR (Equipment Interchange Receipt) | If condition is poor, document with photos and confirm possibility of exchange. |
| Before Vanning | Shipper, Warehouse, Handling Company | Cargo quantity, packing condition, crew, forklift, working space | If cargo is not ready or equipment is insufficient, adjust the work schedule. |
| During Loading | Warehouse, Handling Company, Shipper | Loading arrangement, weight distribution, lashing, prevention of cargo collapse, photo records | If there is risk of uneven loading or cargo collapse, review the loading arrangement. |
| Upon Completion of Loading | Shipper, Warehouse, Freight Forwarder | Quantity, completion of loading arrangement, lashing condition, internal container photos | If records are incomplete, confirm before sealing the container. |
| Seal Application | Shipper, Warehouse, Freight Forwarder | Container number, seal number, sealing condition, photos | If there is a number mismatch, correct it before reflecting it in the documentation. |
| Before VGM Submission | Shipper, Freight Forwarder, Shipping Line, NVOCC | Cargo weight, packing weight, container tare weight, gross weight, submission deadline | If weight discrepancies occur, reconfirm before submission. |
| Before CY In-gate | Freight Forwarder, Drayage Company, CY, Shipping Line | CY cut-off, in-gate reservation, VGM, seal number, hazardous goods information | If delays in in-gate are anticipated, confirm the impact on the scheduled vessel. |
Common Practical Issues
| Case | Frequent Problems | Documents to Check | Practical Measures |
|---|---|---|---|
| Cargo not assembled by vanning date | Vehicle waiting, re-scheduling, delayed CY cut-off | Shipment schedule, warehouse receipt records, work reservation, CY cut-off | Confirm cargo readiness before the work date. |
| Empty container had holes or moisture damage | Cargo wet damage, odor contamination, container replacement, operation delays | EIR, photos of empty container, depot records | Take photos before loading and confirm whether container replacement is possible. |
| Could not load all cargo | Additional container required, reloading, rollover, extra cost | Cargo dimensions, volume calculation, stowage plan, packing list | Verify volume and stowage at the quotation stage. |
| Weight concentrated on one side | Unbalanced load, road transport restrictions, shipping limits, cargo damage | Stowage plan, cargo weight list, photos, VGM | Consider revising stowage or redistributing cargo. |
| Insufficient lashing | Load collapse, damage, abrasion, leakage during transport | Work photos, lashing materials, cargo details | Review securing methods based on cargo characteristics. |
| Incorrect seal number communicated | Document discrepancies, customs confirmation issues, mismatch at delivery | Seal photos, shipping documents, B/L instructions | Verify seal number immediately after sealing and share with relevant parties. |
| VGM does not match actual weight | Load confirmation issues, CY in-gate troubles, schedule delays | Weight list, packing list, VGM, container tare weight | Cross-check weight data before submission. |
| No record of vanning operation | Difficult to identify cause in case of cargo damage | Work photos, stowage plan, lashing records, seal photos | Keep records for high-value cargo or cargo with high risk of damage. |
Comparison Table of Freight Forwarder’s Scope of Involvement
| Stage | Items Confirmed by Freight Forwarder | Items Confirmed by Shipper / Warehouse Side | Practical Notes |
|---|---|---|---|
| Quotation stage | Container type, cargo volume, weight, vanning location, need for special handling | Cargo dimensions, weight, packing condition, desired shipment date | Do not decide container type with ambiguous cargo information. |
| Empty container arrangement | Empty container pick-up location, pick-up date, container type, drayage arrangement | Worksite, vehicle access conditions, working hours | Confirm whether container trucks can enter the worksite. |
| Vanning operation | Work date, CY cut-off, VGM, sharing of necessary information | Cargo preparation, quantity confirmation, stowage, lashing, photo record | Delays in on-site work directly affect CY in-gate timing. |
| Seal application | Receipt of seal number, reflection in documents, sharing with related parties | Applying seal, seal number confirmation, taking photos | Incorrect seal number communication leads to document discrepancies. |
| VGM submission | Submission deadline, submission destination, booking information, consistency of weight data | Cargo weight, packing weight, container tare weight, actual weight | Inconsistency in weight data may cause shipping delays. |
| CY in-gate | In-gate reservation, CY cut-off, adjustment with drayage company, confirmation of in-gate completion | Cargo ready, work completion, confirmation of documents and seal information | Manage vanning operations by working backward from the CY cut-off time. |
Scenario 1: Cargo Not Ready on the Vanning Day
If some cargo has not arrived at the factory or warehouse by the vanning day, container stuffing cannot proceed as scheduled.
In such cases, issues may arise such as waiting drayage vehicles, returning empty containers once, rescheduling the vanning day, or missing the CY cut-off time.
In practice, before the vanning day, the cargo receipt status, packing completion, quantity confirmation, manpower, forklifts, and loading location are checked, and the working day is set by counting backward from the CY cut-off time.
Scenario 2: When Moisture, Odor, or Damage Is Found in an Empty Container
After taking delivery of an empty container, moisture, odor, floor damage, holes, dirt, or residue may be found inside before vanning.
Loading cargo as is may result in damage from moisture, odor contamination, soiling, or container damage costs.
In such cases, photographs should be taken before loading, the EIR or receipt record should be checked, and container replacement may be considered through the freight forwarder or drayage company if necessary.
Scenario 3: Suspected Uneven Load Distribution Despite Total Weight Being Within Limits
Even if the total cargo weight is within the allowable limit, uneven weight distribution concentrated in one part of the container can cause concerns about uneven loading.
Uneven loading affects road transport, port handling, vessel stowage, and safety management. This is especially important for machinery, steel products, stones, and heavy pallets where the loading position and center of gravity must be verified.
In such cases, review the stowage plan, cargo weight sheet, and site photographs, and consider adjusting the loading, splitting the container, or distributing the cargo as needed. For more details, see the separate article on "Overweight and Uneven Loading."
Scenario 4: Cargo Collapse Due to Insufficient Lashing During Transport
If adequate lashing and blocking are not performed during vanning, cargo may shift due to vibrations, shaking, braking, or impact during handling while in transit.
This can result in container crushing, damage, abrasion, leakage, or impact against the container walls.
Particularly for machinery, heavy cargo, drums, liquid cargo, and fragile goods, it is important to consider appropriate lashing, dunnage, airbags, etc., according to the nature of the cargo, and to keep work photos as evidence.
Scenario 5: When Seal Numbers or VGM Information Do Not Match
After vanning, if the seal numbers or Verified Gross Mass (VGM) information do not match the documents, confirmation may be required at the stages of CY in-gate, loading, customs clearance, or delivery.
Errors in seal numbers, mix-ups of container numbers, or discrepancies in weight information can also affect the shipping documents and Bill of Lading details.
After sealing, the container number and seal number should be confirmed with photos, and before submitting the VGM, cargo weight, packing weight, container tare weight, and total weight should be cross-checked. Any discrepancies should be corrected before CY in-gate.
Points for the Shipper to Note
The shipper needs to have the cargo ready for shipment by the vanning date.
If the quantity is incomplete, packaging is unfinished, labels are not attached, or inspection is not completed, loading cannot proceed as scheduled.
It is also important to accurately communicate the cargo’s weight, dimensions, and packaging type to the freight forwarder. If container size or stowage plans are made based on inaccurate information, issues such as incomplete loading, overweight cargo, or uneven weight distribution may occur.
Summary
Vanning refers to the process of loading cargo into an empty container for FCL exports.
While it may appear as a simple on-site task within container transportation, it is actually a critical process involving cargo incidents, shipment feasibility, CY in-gate, VGM, and seal management.
When a freight forwarder undertakes door-to-door transportation, vanning becomes the key process connecting empty container pickup with CY in-gate.
Accurate management of cargo information, container condition, stowage, weight distribution, lashing, photographic records, and seal numbers forms the foundation for safely conducting FCL transportation.
Additionally, records created during vanning relate to cargo incidents, marine cargo insurance, container damage, and overweight or uneven loading checks. It should be managed not simply as loading work but as a process establishing the basis for transport quality and incident response documentation.
