Short answer: A 20GP container holds ~28 CBM and fits 600-800 duffel bags. A 40HQ holds ~68 CBM and fits 1,500-2,000 bags. BATELI optimizes carton loading to maximize container utilization, with MOQ 50 pieces and FBA prep available.
Carton loading and container planning are critical for keeping shipping costs low. Poor packing means wasted space and higher per-unit shipping costs. This guide explains how to calculate container loading for bag shipments from China.
Container Sizes
20GP: internal dimensions 5.9×2.35×2.39m = 33 CBM usable. 40GP: 12.03×2.35×2.39m = 67 CBM. 40HQ: 12.03×2.35×2.69m = 76 CBM. Actual usable volume is ~80-85% of nominal due to packaging inefficiency.
Carton Size Planning
Standard bag cartons: duffel 65x45x35cm (6-10 pcs), backpack 50x40x35cm (8-12 pcs), handbag 45x35x30cm (15-20 pcs). Calculate CBM per carton: LxWxH in meters. Total CBM = carton CBM x quantity.
Loading Efficiency
Well-packed containers achieve 85-90% loading efficiency. Poor packing = 65-70%. Every 10% wasted space = $200-400 extra shipping cost. BATELI optimizes carton arrangement for maximum utilization.
Amazon FBA Prep
For FBA: cartons must be under 25 inches per side, under 50 lbs. Barcode labels must be scannable. We provide FBA prep: polybag labeling, carton marking, direct shipping to Amazon warehouses.
Cost Breakdown
Sea freight to US West Coast: $1,500-2,500 per 20GP. To US East Coast: $2,500-3,500. To EU: $1,200-2,000. Per-bag shipping cost depends on container utilization. At BATELI, we optimize loading to minimize per-unit shipping.
Since 2003, BATELI has shipped 5+ million bags to 30+ countries. 2,600 m² factory, 18 lines, 80,000 units monthly. MOQ 50 pieces. 7-day sampling. 30-45 day bulk. BSCI and ISO 9001 certified.
Learn more about OEM/ODM services. Browse travel bags.
Shipping Cost Calculation Example
Example: 500 duffel bags. Carton 65x45x35cm, 8 bags per carton. 63 cartons total. CBM per carton = 0.102. Total CBM = 6.4. 20GP container = 33 CBM. You fill 19% of container. For 2,500 bags: 313 cartons = 31.9 CBM. This fills one 20GP. Per-bag shipping drops from $1.20 to $0.80.
Insurance and Documentation
Sea freight insurance: 0.3% of cargo value. Bill of Lading: issued by shipping line. Commercial invoice: for customs. Packing list: detailed carton contents. BATELI handles all documentation for you.
Contact BATELI for optimized shipping. We have 5 overseas warehouses for faster delivery.
Container Dimensions
20GP: 5.9 x 2.35 x 2.39 m = 33 CBM. 40GP: 12.03 x 2.35 x 2.39 m = 67 CBM. 40HQ: 12.03 x 2.35 x 2.69 m = 76 CBM. Usable volume = 80-85% of nominal.
Carton Sizes for Bags
Backpack carton: 50x40x35 cm, 8-12 pcs. Handbag: 45x35x30 cm, 15-20 pcs. Duffel: 65x45x35 cm, 6-10 pcs. Laptop bag: 45x35x15 cm, 10-15 pcs.
CBM Calculation Example
500 backpacks. Carton = 0.5 x 0.4 x 0.35 = 0.07 CBM. 10 backpacks per carton = 50 cartons. Total CBM = 3.5. This fills 10% of 20GP. For 5,000 backpacks: 500 cartons = 35 CBM. Fills one 20GP.
Pallet vs Loose Loading
Pallet: faster loading/unloading, protects goods, but uses 10% more space. Loose: maximizes space, but slower and more damage risk. For fragile goods, use pallets. For durable bags, loose loading saves money.
Loading Optimization Tips
Heavy items on bottom. Fill gaps with smaller cartons. Mix sizes to reduce void space. Use air bags to stabilize. Maximize vertical stacking height (standard: 2.2m).
FBA Requirements
Carton under 25 inches per side. Under 50 lbs. Barcode labels scannable. Pallet: GMA standard, 48×40 inches. Label all sides. BATELI provides full FBA prep service.
BATELI: since 2003. 5 overseas warehouses (US/UK/DE/JP/AU). MOQ 50. 7-day sampling. 30-45 day bulk. BSCI, ISO 9001, REACH, CPSIA certified.
Common Loading Mistakes
Overweight cartons: >20kg needs two people. Avoid by distributing weight evenly. Overheight cartons: container doors won close. Check height before loading. Mixed loading without labeling: port sorting delays. Label all cartons clearly. No stretch wrap: goods shift during transit. Always wrap pallets.
FBA Carton and Pallet Requirements
Amazon FBA: carton under 23kg per piece. Carton dimensions under 63.5cm. Pallet: 40×48 inch GMA standard. Height under 1.8m. Label all four sides. Overweight fee: $25+ per carton. BATELI provides FBA prep: labeling, wrapping, palletizing, direct shipping to Amazon.
Calculating CBM Step-by-Step
Example: 500 backpacks. Inner polybag: 45x35x15cm (0.024 CBM). Outer carton: 60x45x40cm (0.108 CBM). 12 backpacks per carton. 500/12 = 42 cartons. Total CBM = 42 x 0.108 = 4.54 CBM. A 20GP holds 28 CBM usable. 500 backpacks = 16% of container. You need ~3,000 backpacks to fill one 20GP.
Mixed Container Loading
Combine multiple SKUs to fill container. Heavy items on bottom. Light items on top. Label each carton by SKU. Packing list must match actual loading. BATELI handles mixed shipments for brands with multiple product lines. 80,000 units monthly capacity.
Frequently Asked Questions1. How many bags fit in a 20GP?
600-800 duffel bags, 800-1000 backpacks, 1500-2000 handbags.
2. What is CBM?
Cubic Meter. Carton LxWxH in meters. Total CBM = carton CBM x quantity.
3. Do you do FBA prep?
Yes. Labeling, carton marking, direct shipping to Amazon.
4. How long is sea freight?
25-35 days to US/EU. 5-7 days by air.
5. What is loading efficiency?
85-90% well-packed. 65-70% poor packing.
Insurance and Risk Management for Container Shipments
Container shipping carries inherent risks that every bag importer should understand. Marine cargo insurance comes in two main forms: All Risks coverage (0.1-0.3% of cargo value) and Free from Particular Average (FPA) coverage. All Risks is strongly recommended for bag shipments because it covers water damage, theft, and crushing during transit. Common container damage scenarios include wet damage from leaking containers, theft from unsecured seals, and crushing damage from improper weight distribution. To mitigate these risks, always use stretch wrap on pallets, place desiccant packs inside cartons (especially for PU leather goods), use numbered container seals, and photograph the entire loading process for documentation. When shipping under CIF terms, the seller arranges insurance; under FOB terms, the buyer is responsible. With experience exporting to 30+ countries, a reliable factory can advise on the best insurance approach for your destination market.
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