Sea Freight Shipping from China to the USA
Home Sea Freight Shipping from China to the USA Verified & Reviewed · Last updated June 2026 Sea freight shipping from China to the USA
REAL SHIPPING CASE STUDY
This was a repeat shipment for a returning customer who had previously shipped similar building materials from Shenzhen to Miami. Based on the earlier shipment experience, Tonlexing arranged another LCL sea freight solution for three wooden cases of aluminum windows and quartz stone countertops.

Shenzhen, China
Miami, USA
Sea Freight
Windows & Quartz Countertops
SHIPMENT OVERVIEW
This shipment included two types of construction materials with very different handling requirements. The aluminum windows needed protection against scratching, impact, and frame distortion, while the quartz stone countertops required stronger structural support due to their high density and risk of cracking.
The total cargo volume was not large enough to justify booking a full container. Therefore, LCL sea freight was selected to allow the client to share container space while maintaining suitable cargo protection.
At 11.071 CBM, LCL sea freight was more practical than booking a full container. Reinforced wooden cases helped protect the heavy quartz countertops and aluminum windows during transit.
Shenzhen → Miami
LCL Sea Freight
3 Cases · 5,850 KG
| Shipment Detail | Information |
|---|---|
| Origin | Shenzhen, China |
| Destination | Miami, USA |
| Cargo | Aluminum Windows and Quartz Stone Countertops |
| HS Codes | 761010 and 681019 |
| Packages | 3 Wooden Cases |
| Gross Weight | 5,850 KG |
| Cargo Volume | 11.071 CBM |
| Shipping Method | LCL Sea Freight |
| Packaging | Reinforced Wooden Cases |
| Total Shipping Time | Approximately 32 Days |
CARGO HANDLING NOTE
With a total weight of 5,850 kg in only three wooden cases, this shipment placed a high load on a relatively small container area. Most of the concentrated weight came from the quartz stone countertops, while the aluminum windows required protection from pressure and impact.
During LCL consolidation, the cases needed stable floor-level placement and separation from unsuitable surrounding cargo. This helped reduce shifting, edge impact, frame deformation, and damage during repeated warehouse handling.
5,850 KG
11.071 CBM
3 Wooden Cases
Heavy & Fragile
CLIENT NEEDS
This was another shipment arranged for a returning customer. Tonlexing had previously handled an LCL sea freight shipment of aluminum railings and cabinetry from Shenzhen to Miami, giving our team useful experience with the customer’s route, destination requirements, and shipping preferences.
SOLUTION
Tonlexing arranged an LCL sea freight plan with additional controls for heavy and damage-sensitive cargo. The solution focused on suitable warehouse handling, protected container placement, and accurate customs documentation for the two product categories.
LCL space was booked with a warehouse able to receive dense wooden cases. Package weight, dimensions, and lifting requirements were confirmed before cargo delivery.
The quartz cases were kept stable at floor level, while the aluminum windows were separated from heavy surrounding cargo to reduce pressure, scratching, and movement.
The two products were listed separately with HS Codes 761010 and 681019. Wooden-case markings, invoice details, and packing information were checked before export.
Service Note: For heavy LCL cargo, the dimensions and weight of each wooden case should be confirmed before booking. No-stack labels, forklift entry points, and compliant wood-packaging marks should also be checked before warehouse delivery.
CARGO HANDLING
The photo shows the three reinforced wooden cases before warehouse delivery in Shenzhen. The aluminum windows and quartz stone countertops were secured with external straps to help keep the cases stable during inland transport and subsequent LCL handling.

PROCESS
The shipment moved through six coordinated stages, from cargo review and warehouse receiving in Shenzhen to LCL deconsolidation and cargo release in Miami.
We reviewed the cargo type, package dimensions, weight, HS Codes, and wooden-case condition before confirming the LCL booking.
The three wooden cases were delivered to the Shenzhen warehouse, where package marks, quantities, dimensions, and gross weight were checked.
The warehouse checked the case bases, forklift entry points, lifting stability, and visible exterior condition before consolidation.
The cases were positioned at floor level and separated from unsuitable heavy cargo to reduce pressure, movement, and impact during transit.
After document review and export customs clearance, the consolidated container departed from Shenzhen for Miami by sea.
After arrival, the container was unpacked at the destination warehouse before customs clearance, cargo release, and onward delivery.
TRANSIT TIME
The ocean transit from Shenzhen to Miami was approximately 24 days, while the complete shipment took around 32 days.
The additional time covered several operational stages that are not included in the vessel transit alone:
Cargo delivery to the Shenzhen warehouse
LCL warehouse receiving
Container consolidation
Export customs clearance
Waiting for the scheduled vessel
Ocean freight transit
Container unloading and deconsolidation in Miami
Import customs clearance
Final cargo release
This distinction is important when comparing freight forwarder quotations. Some companies quote only the port-to-port transit time, while others provide an estimated total shipping time.
A reliable freight forwarder should clearly explain what is included in the stated transit time and which destination procedures may add additional days.
Factors That Can Affect Transit Time
Vessel schedule changes
Port congestion
Incomplete commercial documents
LCL consolidation delays
Destination warehouse availability
Severe weather
Peak-season container demand
Importer clearance readiness
Shipping schedules are estimates rather than guaranteed delivery dates. Importers should allow additional time when the cargo is required for a construction deadline or installation project.
Customs & Compliance
Before departure, Tonlexing checked the product descriptions, supplied HS Codes, packing list, wooden-case details, and consignee information for this three-case LCL shipment from Shenzhen to Miami.
761010 & 681019
761010: Aluminum windows
681019: Quartz stone countertops
Final U.S. classification should be confirmed by the importer or customs broker.
Practical customs note: Avoid declaring the shipment only as “building materials.” The commercial invoice and packing list should show the aluminum windows and quartz stone countertops separately, including their descriptions, HS Codes, quantities, values, weights, and package marks.
FAQ
The shipment measured 11.071 CBM, which was not enough to require a full container. LCL sea freight allowed the client to share container space and reduce shipping costs.
Because the cargo was heavy and fragile, the wooden packaging and consolidation method had to be reviewed carefully before booking.
Yes. They can share container space when each product is packed securely and the loading arrangement prevents the heavy stone cargo from placing pressure on the aluminum frames.
The freight forwarder should confirm the weight, package dimensions, lifting method, and stacking restrictions before consolidation.
Air freight is faster, but it is considerably more expensive for cargo weighing 5,850 kg.
Quartz stone is extremely dense, making air freight costs difficult to justify for most building-material shipments. Sea freight provided a more cost-effective solution for this Shenzhen-to-Miami route.
Quartz stone countertops should be firmly supported inside reinforced wooden packaging.
Depending on their dimensions, they may require vertical support, internal bracing, shock-resistant materials, protective separators, and a strong wooden base. The objective is to prevent movement, impact, and concentrated pressure during handling.
Yes. Miami customs clearance and final delivery can be arranged when the importer provides the complete delivery address, ZIP Code, company details, cargo value, and required customs information.
The final service scope should be confirmed before shipment so that destination charges and delivery requirements can be included in the quotation.
INTERNAL LINKS
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