If you're planning an international shipment in a 20ft container and want to know exactly how many pallets you can fit — this is the complete answer.
The short answer is 10 standard pallets. But most online resources still say 8. That's because they use simple grid loading. The industry standard is pinwheel (mixed-orientation) loading, which fits 2 more pallets — a 25% improvement — with no extra cost.
This guide covers every pallet type, explains exactly why pinwheel loading works, and shows you how to calculate cartons per pallet for your specific box dimensions.
A 20ft standard container has internal dimensions of 589cm × 233cm (floor area). Here is what fits using different loading methods:
| Loading Method | Standard (120×100cm) | Euro (120×80cm) | 110×110cm |
|---|---|---|---|
| ✅ Pinwheel (industry standard) | 10 pallets | 11 pallets | 10 pallets |
| Simple grid loading | 8 pallets | 10 pallets | 9 pallets |
| Difference | +2 pallets (25% more) | +1 pallet | +1 pallet |
Important: Many websites and freight calculators still quote 8 pallets for a 20ft container. This is based on outdated simple grid loading. Professional logistics companies and container load calculators use pinwheel loading, giving you 10 pallets.
Simple grid loading places all 120×100cm pallets in the same orientation: 4 columns × 2 rows = 8 pallets, using 480cm of the 589cm floor length. That leaves 109cm unused at the back — not enough for another 120cm pallet.
Pinwheel loading splits the container into two zones and rotates pallets 90° in Zone B:
Pinwheel loading layout — 5 pallets in Zone A + 5 pallets in Zone B = 10 total
5 pallets placed with the 100cm side along the container length: 5 × 100cm = 500cm. Container is 589cm long, so 500cm is used with 89cm remaining.
Remaining container width after Zone A = 233 − 120 = 113cm. Pallets placed with 120cm along the container length: 4 pallets × 120cm = 480cm, with 109cm remaining. That remaining 109cm is wide enough for one more pallet at 100cm orientation. Zone B total = 5 pallets.
Result: 5 + 5 = 10 pallets compared to 8 with simple grid loading.
| Pallet Type | Dimensions | 20ft Count | Common Region |
|---|---|---|---|
| Standard / GMA | 120 × 100 cm | 10 pallets | Asia, North America |
| Euro Pallet (EPAL) | 120 × 80 cm | 11 pallets | Europe |
| 110 × 110 cm | 110 × 110 cm | 10 pallets | Australia, Asia |
| US Standard (40×48") | 101.6 × 121.9 cm | 9–10 pallets | North America |
Understanding the floor dimensions is key to calculating pallet counts accurately:
| Dimension | 20ft Standard | 20ft Reefer |
|---|---|---|
| Internal Length | 589 cm (5.89 m) | 580 cm (5.80 m) |
| Internal Width | 233 cm (2.33 m) | 234 cm (2.34 m) |
| Internal Height | 240 cm (2.40 m) | 238 cm (2.38 m) |
| Volume | ~33 CBM | ~32.4 CBM |
| Max Payload | 28,000 kg | 27,700 kg |
| Pallets (Standard) | 10 pallets | 9 pallets |
| Pallets (Euro) | 11 pallets | 10 pallets |
Knowing how many pallets fit is just the start. The more useful question is: how many cartons of your specific box size fit in the container?
This depends on:
ContainerLoad calculates this automatically. Enter your carton dimensions and it calculates the best orientation, cartons per pallet layer, layers per pallet, and total cartons for the full container — with a 3D diagram showing the exact loading arrangement.
Enter your box dimensions → get pallet breakdown + 3D diagram in seconds
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