Transloading Services: Ocean Containers into Domestic Trailers

What transloading services do

Transloading services transfer freight from one piece of equipment to another, most often from a 20' or 40' ocean container into a 53' domestic dry van at a transload warehouse close to the port. The ocean container goes back to the steamship line within days, and the freight continues inland in domestic equipment that the shipper or its carrier controls.

The move sounds simple, but the value comes from what happens in between. During the transfer, freight can be counted against the packing list, sorted by purchase order or destination, built onto pallets, labeled for the receiving customer and split across several outbound trucks. That makes ocean to domestic transloading a decision point in the supply chain as much as a handling step.

This page covers how container transloading works at any U.S. port, how it is priced, when it pays and when it does not, and how to evaluate a transload provider. For our own operations, see transloading in Long Beach and transloading for Port of Los Angeles containers.

Why transloading services save loads: the equipment math

A 53' domestic trailer is longer and taller inside than an ocean container, so freight from three 40' containers often fits into two 53' trailers. The figures below are typical interior measurements; individual equipment varies.

Cube out or weigh out: the limit that decides the ratio

The 3:2 rule of thumb only works when freight runs out of space before it runs out of weight. Federal rules in 23 CFR 658.17 cap a truck on the Interstate system at 80,000 lb gross vehicle weight, 20,000 lb on a single axle and 34,000 lb on a tandem. The tractor and empty trailer count against that limit. Example: if they weigh 35,000 lb together, the trailer can carry about 45,000 lb of cargo.

Light, bulky freight such as apparel, furniture, plastics and home goods cubes out first, so consolidating three containers into two trailers works well. Dense freight such as tile, canned goods, paper or metal parts weighs out first. An ocean container of tile may already be at or above what a single 53' trailer can legally carry, and transloading it can mean one container becomes one trailer, or even two.

Before booking, compare the gross cargo weight on the bill of lading with the carton count and cube on the packing list. Using the example allowance above, three containers can only become two trailers if their combined cargo is under about 90,000 lb, or roughly 30,000 lb per container. Above that, ask your provider for a load plan before assuming any consolidation savings.

How container transloading works, step by step

A well-run transload follows the same sequence whether the freight is one container or forty.

1. 01
   Pre-alert and instructions

   The importer, forwarder or broker sends the bill of lading, packing list, commercial invoice and container numbers, plus written instructions: how to sort, how to palletize, what labels to apply and where each load goes.

2. 02
   Customs release and availability

   The customs broker files entry, and the container must show released by CBP and free of line and terminal holds. If entry is not ready, the freight can move in-bond to a bonded facility instead.

3. 03
   Drayage to the transload warehouse

   A drayage carrier pulls the container from the terminal on a chassis and delivers it to the transload facility. See our overview of drayage services for how terminal pickups are scheduled.

4. 04
   Devanning and receiving

   The container is unloaded, and cartons are counted against the packing list. Shortages, overages and visible damage are photographed and noted before anything is signed. Floor-loaded cartons are hand-unloaded; palletized freight comes off by forklift.

5. 05
   Sort, palletize and label

   Cartons are sorted by PO, SKU, store or destination, stacked onto pallets to the consignee's height and weight specs, stretch-wrapped and labeled.

6. 06
   Load planning

   Pallets are assigned to outbound trailers by destination and weight, with axle weight in mind. Heavy pallets go low and are spread along the trailer floor.

7. 07
   Load out and dispatch

   Trailers are loaded, sealed and dispatched by full truckload or LTL. Seal numbers and pallet counts go on the bill of lading.

8. 08
   Empty return and reporting

   The empty ocean container goes back to the terminal or the depot the line designates, ending per diem. The customer receives counts, exceptions, photos and outbound tracking.

Worked example: transloading vs. shipping containers inland

Example (hypothetical, round numbers): an importer has nine 40' containers of floor-loaded home goods arriving on one vessel. The freight is bound for three distribution centers about 1,000 miles inland, in roughly equal shares. Each container holds about 1,800 cartons and 18,000 lb, so the freight cubes out well before it weighs out.

Shipping the containers inland means nine long-haul container moves. Each container is out of the terminal for perhaps 8 to 12 days including transit, unloading and the trip back empty, and it consumes chassis days the whole time. If the line allows four free days of per diem, each container could rack up a week or more of charges. Every DC also has to unload floor-loaded cartons by hand.

Transloading near the port turns the nine containers into six 53' trailers, two per DC. Each container is emptied and returned within a few days of pickup, so per diem exposure drops sharply. The cartons arrive at each DC already palletized and labeled, which cuts receiving labor there. The added costs are the transload handling itself, pallets and wrap, and the local dray to the transload warehouse.

Whether it pays depends on the gap between nine inland container moves plus per diem and six trailer moves plus handling. For long distances and light freight, transloading usually wins. For short local deliveries, or heavy freight that cannot consolidate, it often does not.

When transloading makes sense, and when it does not

Use this as a quick decision framework before requesting quotes.

What drives the cost of transloading services

Transload pricing is usually built from several line items. Knowing them lets you compare quotes on equal terms.

• Unloading method: a floor-loaded container of loose cartons takes far longer to devan than a palletized one. Quotes are often per container, with tiers by carton count.
• Carton count and SKU mix: 2,000 cartons of one SKU go faster than 900 cartons across 60 SKUs that must be sorted and counted separately.
• Sorting complexity: splitting by PO, store or destination adds labor for every extra sort lane.
• Pallets, wrap and labels: new or used pallets, stretch wrap, corner boards and printed labels are typically billed per pallet or per unit.
• Storage time: freight that waits for an outbound appointment or a purchase order accrues storage after a free period.
• Drayage in and empty return: the local container move from the terminal, chassis days, and any pre-pull or yard storage.
• Outbound mode: full truckload, multi-stop truckload or LTL, and the accessorials each carries.
• Exceptions: damaged cartons, recounts, re-palletizing to a customer's spec, or rework when instructions change after unloading.

Documents and information a transload provider needs

Missing paperwork is the most common cause of a transload that sits idle. Send these before the vessel arrives.

• Master or house bill of lading and container numbers
• Packing list with carton counts, dimensions and weights by SKU
• Commercial invoice, if the provider will handle any in-bond or bonded steps
• Customs release status, or in-bond paperwork from your broker
• Written sort, palletizing and labeling instructions, including pallet height and weight limits for each consignee
• Delivery appointments or receiving hours at each destination, plus consignee routing guides
• Outbound carrier details if you are tendering your own trucks
• Your preferred format for receiving reports, exceptions and photos

Bonded transloading for freight that has not cleared customs

Bonded transloading moves freight that is still under CBP control. It applies when entry has not been filed or released, when goods are moving in-bond to another port, or when freight is held in a customs-bonded warehouse to defer duty or await a decision.

In-bond movements under 19 CFR 18 must be delivered to the destination or export port within 30 days, and arrival must be reported electronically within two business days. Diverting the shipment does not restart that clock. A carrier needs bonded carrier authority to move the freight, and the receiving facility must be bonded. Our guide to in-bond shipments walks through the process.

Changing freight inside a bonded warehouse is narrower than a normal transload. Under 19 U.S.C. 1562, bonded goods may be cleaned, sorted, repacked or otherwise changed in condition, but not manufactured, under CBP supervision. CBP's warehouse classes in 19 CFR 19.1 include a Class 8 category set up specifically for that kind of manipulation. Talk to your customs broker before planning any repacking of bonded cargo. See bonded warehousing for how that service works.

Common container transloading mistakes and how to avoid them

• Assuming 3:2 for every load. Check weight per container first. Dense freight breaks the ratio.
• Sending sort instructions after the container is unloaded. Rework costs more than doing it right once. Lock instructions before pickup.
• Ignoring consignee pallet specs. Many retail DCs reject pallets over a set height or weight, or without compliant labels. Get each routing guide in advance.
• Covering country-of-origin marks with new labels. Under 19 U.S.C. 1304, imported goods must stay marked with their country of origin, and knowingly concealing those marks carries criminal penalties. Place new labels so the origin marking remains visible.
• Letting the empty sit. Per diem runs until the empty is back. Confirm where the line wants it returned before the container is unloaded.
• Skipping the receiving report. Without photos and counts at devanning, a shortage found at the DC is hard to claim against the ocean carrier or supplier.
• Booking outbound trucks last. If trailers are not lined up, freight sits on the dock and storage starts. Plan outbound capacity when you book the drayage.

How to choose a transload warehouse

Price per container matters, but these questions tell you more about how a provider will perform.

• Distance from the terminals. A transload warehouse near the port keeps drayage short and makes same-day container turns realistic.
• Drayage control. A provider with its own drayage and chassis can schedule pickups around the warehouse plan instead of waiting on a third party.
• Bonded capability. Bonded carrier authority and a CBP-bonded warehouse give you an option when entry is delayed.
• Systems. Ask for a warehouse management system, barcode scanning and electronic receiving reports, not handwritten tallies.
• Exception process. Ask how overages, shortages and damage are documented and how fast you hear about them.
• Outbound reach. A provider that also runs truckload and LTL can move the freight onward without another handoff.
• Freight fit. Confirm the provider handles your container sizes, weights and commodity before the first booking.

Where we provide transloading services

National Freight & Drayage runs transloading from our transload warehouse in Long Beach, California, near both the Port of Long Beach and the Port of Los Angeles. We pull containers on our own 20' and 40' chassis, plus triaxle chassis for heavier containers, so the drayage and the warehouse work from one plan.

Transloaded freight continues by truckload or LTL anywhere in the U.S., with cross-border service to Canada and Mexico. Many customers combine transloading with cross-docking, short-term warehousing or container unloading for freight that stays local. For a comparison of the two flow-through services, read transloading vs. cross-docking.

Frequently asked questions