How to consolidate shipments from multiple suppliers in China

If you buy from several factories, you rarely get one shipment out of it. You get several sets of cartons, several export declarations and several separate bookings, each with its own charges and its own chance of being held up at the port. Consolidating them into one shipment is the usual fix, and it does save money, but it changes when your goods leave China and how they are packed before they do.

Consolidation means your suppliers deliver to one warehouse in China, where the cargo is checked and repacked before a single shipment leaves. Whether it saves money comes down to volume and weight, and to whether your deadline can absorb a few extra days in a warehouse.

Why separate shipments cost more than they look

A supplier who arranges their own shipping books their own space with a carrier or an express company. The freight is only part of what you pay. Export documentation, terminal handling at origin and the local delivery in your country each carry a fixed part, and you pay that fixed part once per shipment. Three small consignments can cost more in total than one larger consignment of the same goods.

Destination costs behave the same way. Every consignment produces its own customs entry, its own terminal charges at the discharging port and its own delivery run to your address, and none of those charges shrink because the volume in the truck was halved.

There is a second cost that never appears on an invoice. Suppliers ship when their own production allows, so arrival dates spread out, and the cartons arrive in whatever condition the factory chose. Nobody checks the cargo against the packing list before it goes on a vessel, and nothing gets corrected if the cartons are too weak for a container.

Cargo that does not fill a container is charged on volume, measured in cubic metres, or on weight, measured in tonnes, and the carrier takes whichever figure is larger. Heavy compact goods such as glassware or metal parts are usually charged by weight. Light bulky goods are charged for the space they take.

What happens at a consolidation warehouse

The work starts long before anything reaches a port. Suppliers deliver to a warehouse, by their own truck or through a domestic courier, and the shipment is assembled there.

• Cartons are received and counted against each supplier's packing list
• Labels and shipping marks are applied, or replaced when the factory used the wrong ones
• Cargo is repacked where the cartons would not survive stacking in a container
• Goods are grouped by destination so that one consignment leaves per destination
• The consolidated cargo moves to the port or airport as a single booking

Who runs that warehouse matters more than the fee suggests. Buyers sometimes try to save the handling charge by sharing a container with another seller they met online. That arrangement has a failure mode: if one co-loader's paperwork is wrong, customs can hold the whole container while the rest of the cargo waits, and the storage clock keeps running for owners who did nothing wrong.

A forwarder who operates the receiving warehouse is also the party who inspects the cartons and reports back. Faults are found in China, where they can still be fixed, instead of at the destination port, where the only remaining option is a claim.

When consolidation pays, and when to ship direct

Start with the volume of the combined cargo. Below roughly 13 cubic metres in total, paying for the space you occupy is usually the cheaper route. Above roughly 20 cubic metres, a full container usually wins, because a container price does not fall when the container is half empty. Between those two figures, ask for both quotations on identical cargo and compare them line by line.

Container capacities are approximate because carton shapes and pallet heights leave gaps that nothing fills. As a working guide, a 20ft container holds about 28 cubic metres of usable space, a 40ft about 58, and a 40ft high cube about 68.

Weight can override the volume comparison. A modest consignment of tiles or ceramic tableware can measure like LCL cargo and still be charged by its weight. Ask for the chargeable figure, by volume and by weight, before you decide.

Deadlines decide more cases than price does. A consolidated container leaves when the consolidator has filled enough of it, so your cargo can sit in the warehouse for several days. Sea freight from China runs about 15 to 40 days depending on destination and air freight 5 to 15 days, so a few days of waiting rarely changes the plan on its own. When the stock has to move on a fixed date, a container you control or an air shipment can be worth more than the saving.

Origin decides the rest. Suppliers clustered in Zhejiang come together cheaply, because the inland legs are short. When one supplier sits in Guangdong and another in Zhejiang, the trucking to a single warehouse can cost more than the freight you saved, and shipping the distant supplier's goods on their own may be the better arrangement.

The same logic applies to air freight. Cartons from several suppliers can leave under one air waybill, and the saving comes from the same place: one booking, one round of handling and one clearance instead of several. Air cargo has less room for a packaging mistake, because there is no slack in the schedule to repack and rebook a shipment that fails screening.

The packaging decisions you can still change

Factories pack for domestic delivery unless somebody instructs them otherwise: thin cartons, minimal padding, nothing protecting a corner, and no compression test before the pallet is built. Export cargo is stacked, handled by machines and exposed to humidity for weeks, so cartons that were adequate on a domestic truck fail somewhere between the factory and your door.

Consolidation is the last point where you still control this. Repacking into stronger cartons and reducing the number of cartons lowers the damage rate and, on LCL cargo, the volume you are charged for.

When the goods are heading to Amazon, add the label requirements to the same instruction. Barcodes belong on outer and inner cartons, and the cartons should be built so the fulfilment centre can scan them without opening the box.

One set of documents, one clearance

A consolidated shipment produces one bill of lading and one customs entry, which means one clearance at destination instead of several. The invoice and packing list still have to match the physical cargo, because the weights and carton counts on those documents are what customs compares when it selects a container for inspection.

Handover terms cause more disputes than the freight does. When your supplier delivers to a warehouse in China rather than to a port, Free On Board does not describe what happened: the cargo changed hands inland, days before it reached the quay. FCA, where the seller delivers to a named place such as the forwarder's warehouse, matches the arrangement. Under FOB, damage between the terminal gate and the vessel sits in a gap that either side's insurer can point at when a claim is filed.

Four documents travel with the shipment: the commercial invoice, the packing list, the bill of lading and, where the destination asks for it, a certificate of origin. Mistakes usually begin at the supplier's packing list, which is often written from memory instead of from a scale. At a consolidation warehouse the cartons are counted and weighed as they arrive, so the figures going onto the export documents have been checked against the physical cargo before the container is sealed.

Cargo insurance is arranged at booking for the declared value of the goods. Keep that figure aligned with the invoice value, because a declared value that disagrees with the invoice makes a loss claim harder to settle.

How we handle consolidation

Yueyang International Logistics has moved cargo out of China since 2010, from our office in Yiwu, Zhejiang. We receive, inspect, label and consolidate shipments at our Yiwu facility, then move them to Ningbo, Shanghai, Shenzhen or another Chinese port for the sailing, or to an airport when the cargo has to fly.

We quote DDP door to door, which covers collection from your suppliers, export clearance, freight, import clearance, duties and delivery to your address, and we list the charges separately so you can see what each part of the journey costs. Rail freight to Europe and Central Asia is available for cargo that suits neither sea nor air.

Send the supplier list, the carton details and the delivery address to [email protected] or call +86 152 6732 4109. You will get one quote for the consolidated shipment, usually within 24 hours.