Different sizes, different quantities, different stacking rules. Put the whole order into one packlist and see how the pieces can share a container.
A practical guide with inspectable inputs and a calculated example.Keep each carton size as its own packlist row, with its quantity, packed dimensions, weight and handling rules. Calculate the full shipment together. Dividing container volume by an average carton volume misses the shapes and restrictions that determine the arrangement.
Two boxes with the same description may have different external dimensions. Two boxes with the same dimensions may have different weights or stacking limits. Give them separate rows when those properties differ. That makes the calculated arrangement and remaining-item list easier to trace back to your order.
Total volume does not tell you where the empty spaces will be. A non-stackable crate reserves the space above it, a long package may break up the available floor length, and upright-only cartons may leave gaps at the top. Smaller cartons can use some gaps, but only when their support and orientation rules allow it.
Normalize dimensions and weight units before planning a consolidated shipment. Retain useful package descriptions and supplier references, and check that quantities have not been counted twice. A shared container plan is only as reliable as the individual packing lists that feed it.
If a supplier adds more cartons to the order, update that row’s quantity and calculate again. Do not infer capacity from the visual amount of empty space. Review the new remaining-item list and loaded weight as well as the arrangement; a small order change can affect more than one row.
This synthetic shipment combines different package dimensions and quantities. The same inputs are used for all three calculations below and for the example you can open in the planner.
| Package | L × W × H (mm) | Quantity | kg / piece | Total m³ |
|---|---|---|---|---|
| Large cartons | 1,000 × 750 × 650 | 80 | 18 | 39 |
| Medium cartons | 800 × 600 × 650 | 40 | 13 | 12.48 |
| Small cartons | 600 × 400 × 650 | 30 | 9 | 4.68 |
| Shipment total | 2,230 kg | 150 | — | 56.16 |
| Container preset | Inside L × W × H (mm) | Placed | Remaining | Volume use |
|---|---|---|---|---|
| 20ft standard | 5,898 × 2,352 × 2,393 | 51 | 99 | 74.9% |
| 40ft standard | 12,032 × 2,352 × 2,393 | 128 | 22 | 76.5% |
| 40ft high cube | 12,032 × 2,352 × 2,697 | 150 | 0 | 73.6% |
More volume use does not mean more of the order loaded. The standard 40ft uses a larger percentage of its interior in this example, but the high cube places all 150 cartons. Read the placed and remaining counts together with the volume percentage.
Preview the example, then choose to load it in the planner.
Millimetres for dimensions. Kilograms per piece. A blank template and the filled example used on this page.
The tables use the CargoSNX container presets. Equipment varies by manufacturer and unit: Hapag-Lloyd’s container specifications describe that variability, and its 40ft high cube reference provides a carrier example. Check the booked container’s internal dimensions, door opening and payload before using a plan.
This example uses rectangular packages and the stated handling rules. It does not simulate cargo securing, packaging strength, equipment access or the full physical loading path, and it does not prove that the calculated arrangement is optimal. Include the relevant operational checks before loading.
Yes. Enter each size and handling rule as a separate item row. The calculation places items together within the selected container and reports pieces it could not place.
You can model them as rectangular shipping units using their packed external dimensions. Irregular shapes are represented by their bounding dimensions; the planner does not model detailed surfaces, packaging compression or cargo securing.
Mark it as non-stackable so other packages are not placed on it. If it can carry a limited load, enter its permitted top load. Use the actual packaging specification instead of assuming every carton can support a full stack.
No. The result is a planning aid based on the dimensions and rules you enter. Inspect it against the actual container, packaging, loading equipment and securing requirements. It is not proof of an optimal arrangement or a complete physical loading sequence.
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