On this page
- When a mixed container makes sense
- Step 1: Build a structured parts list
- Step 2: Validation and quotation
- Step 3: Choose the container
- Step 4: Consolidation and loading
- Step 5: Batteries and dangerous goods
- Step 6: Documents
- Step 7: Incoterms and shipping
- Planning notes by product line
- Cartons, pallets and wooden packaging
- Tires in a mixed container
- Planning checklist
Most importers do not need a full container of a single part number. A distributor supplying workshops in Nairobi, a fleet operator in the Gulf or a parts retailer in the Caribbean typically needs hundreds of different lines, from filters and brake pads to suspension joints, batteries and tires, in quantities that justify a container only when combined. A mixed container consolidates these lines from multiple product categories and manufacturers into one shipment, with one set of export documents.
This guide explains how the process works and how to plan an order that loads efficiently and clears customs without delays.
When a mixed container makes sense
| Situation | Mixed container suitability |
|---|---|
| Wide range of part numbers, moderate quantity per line | Well suited |
| Replenishing a distributor's stock across categories | Well suited |
| Fleet operator stocking parts for a mixed vehicle fleet | Well suited |
| A few part numbers in very high volume | A single-category container or direct factory order may suit better |
| Small trial order well below container volume | Consider LCL (less than container load) shipment first |
Step 1: Build a structured parts list
The quality of the parts list determines the speed and accuracy of the quotation. Each line should carry an OEM or reference part number, description, vehicle application, quantity and any brand or quality-tier preference. A full column template is covered in preparing a parts list for a wholesale RFQ.
Group lines by category, for example filters, brakes, suspension, electrical, batteries and tires. This helps with sourcing, with packing and with customs classification later.
Step 2: Validation and quotation
Before quoting, part numbers are validated: superseded numbers are identified, duplicates are merged, ambiguous lines are queried, and alternatives are proposed where a requested brand or tier is unavailable. You can upload your parts list and our team checks OEM numbers and applications before quoting.
Expect questions on lines with missing vehicle details. Clarifying them before order confirmation is far cheaper than dealing with wrong parts after arrival.
Step 3: Choose the container
Container choice depends on both volume and weight. Auto parts cargo varies widely in density.
| Container | Approximate internal volume | Typical use |
|---|---|---|
| 20ft standard | About 33 m³ | Dense cargo such as batteries, brake parts, bearings and engine parts |
| 40ft standard | About 67 m³ | General mixed parts |
| 40ft high cube | About 76 m³ | Bulky cargo such as tires, radiators, body parts and accessories |
Approximate figures only; exact dimensions and payload limits vary by container owner, and road weight limits at origin and destination may restrict the practical payload below the container's rating.
Weight-limited cargo. Batteries, brake drums, brake discs, leaf springs and engine components reach the payload limit well before the container is full by volume.
Volume-limited cargo. Tires, radiators, bumpers, canopies, filters in retail cartons and bull bars fill space quickly while remaining light.
A well-planned mixed container balances dense and bulky cargo to use both weight and volume allowance.
Step 4: Consolidation and loading
Parts from different manufacturers and suppliers are received, checked against the order, and consolidated before loading. Good practice includes:
- Checking quantities and part numbers against the order on receipt
- Carton marking with part number, quantity and carton number that match the packing list
- Palletizing heavy or fragile items where appropriate; floor-loading where maximizing volume matters, for example with tires
- Load planning: heavy items at the bottom and distributed evenly along the floor; fragile parts such as glass, lamps and radiators protected and not under heavy cartons
- Securing the load with bracing, dunnage or strapping so cargo cannot shift in transit
Step 5: Batteries and dangerous goods
Batteries need particular attention in a mixed container:
- Filled lead-acid batteries are generally classified as dangerous goods for sea transport, unless the specific battery meets the conditions for an exemption. A container carrying them requires dangerous goods documentation, labeling and a carrier that accepts the booking.
- Dry-charged batteries without electrolyte are generally not regulated as dangerous goods, but the electrolyte, if shipped, is.
- Other items that may be regulated include some chemicals such as brake fluid, coolant concentrates, aerosol lubricants and certain adhesives.
Classification depends on the actual products and the current dangerous goods regulations. Confirm with the forwarder at the planning stage, not after loading. The truck battery selection guide covers filled versus dry-charged supply in more detail.
Step 6: Documents
A typical export shipment from Thailand includes:
| Document | Purpose |
|---|---|
| Commercial invoice | Value, terms of sale and description for customs |
| Packing list | Carton-level contents, weights and volumes |
| Bill of lading | Carrier's receipt and title document for sea freight |
| Certificate of origin | Required for preferential tariffs or by some destinations |
| Pre-shipment inspection or conformity certificate | Required by some destination countries |
| Dangerous goods declaration | Where regulated cargo is included |
For mixed containers, descriptions and HS codes must be accurate line by line or grouped by category. Vague descriptions such as "auto parts" can trigger customs queries at destination. See the Thailand automotive parts export guide for detail on documents, conformity programs and HS classification.
Step 7: Incoterms and shipping
Agree the Incoterms rule early, because it determines who books freight, who insures and where risk transfers. For containerized cargo:
- FCA (Free Carrier) is the rule designed for goods handed over to a carrier at a terminal or the seller's premises.
- FOB, CFR and CIF are widely used in practice for sea freight, though they are defined around loading on board the vessel.
- CIP, DAP and DDP place more responsibility on the seller, up to the destination.
Terms and freight options are explained on our export process and shipping and logistics pages.
Planning notes by product line
| Product line | Examples | Planning note |
|---|---|---|
| Filters | Oil, air, fuel, cabin | Light and volume-intensive in retail boxes |
| Brake parts | Pads, shoes, discs, drums, cylinders | Dense and heavy; good for using weight capacity |
| Suspension and steering | Shock absorbers, leaf springs, bushings, ball joints | Leaf springs are long and heavy; usually palletised |
| Engine and driveline | Gaskets, pumps, belts, clutch kits, bearings | Mostly compact cartons with high value per volume |
| Truck parts | Service and wear parts for light and medium trucks | Mix of heavy and bulky items |
| Batteries | Automotive and commercial batteries | Dangerous goods handling and segregation may apply |
| Tires | Passenger, SUV, light truck, commercial | Very volume-intensive |
| Pickup accessories | Canopies, bars, racks, bed liners | Bulky; packaging protection matters |
High-value, compact parts such as sensors, bearings and gaskets add value without using much space, which reduces freight cost as a share of goods value.
Cartons, pallets and wooden packaging
- Cartons: small parts are packed into export cartons, grouped by category or by your warehouse layout, and numbered to match the packing list.
- Pallets: heavy or mixed cartons are palletised for forklift handling. Pallets use container volume, so floor-loaded cartons can fit more if you unload by hand.
- Wooden packaging: solid-wood pallets and crates for export are treated and marked to ISPM 15.
- Marking: shipping marks, branch codes or your own item codes can be added to cartons if requested at order confirmation.
Tires in a mixed container
Tires use a lot of volume relative to their value. Loose loading fits more tires, while palletised tires are faster to unload. If tires are a large share of the order, a 40ft high cube is often the most practical choice, and tires can leave limited space for other product lines.
Planning checklist
- Structured parts list with OEM numbers, applications and quantities
- Validation queries answered before order confirmation
- Container size chosen on both weight and volume
- Battery supply condition (filled or dry-charged) decided
- Destination import requirements confirmed, including any pre-shipment conformity program
- Incoterms rule and port of discharge agreed
- Document requirements, including certificate of origin, confirmed with your customs broker
Learn more about our mixed container auto parts service.