What the tool does
Most "how many cartons fit" answers divide volumes and promise more than goes in. The tool places every carton in the inside space of the equipment, keeps the clearance you set, and shows the result.
- Equipment: 20', 40', 40' high cube and 45' high cube containers with the inside sizes, door sizes and payloads published by carriers, an EU 13.6 m trailer, a US 53' van, or your own truck.
- Rules per item: any side, this side up or fixed orientation, stackable or not, floor only, and the stop where it is unloaded.
- Load plan: number of units, cartons loaded, volume and weight used, length used, centre of gravity, a 3D view from the door and top and side views, and the cartons that did not fit with the reason.
- Most that fit: for each item alone, the planned quantity next to the one-orientation count and the plain volume ratio, so the difference is visible.
- Packing list: carton numbers, marks, description, HS code, pieces, net and gross weight, size and CBM with totals, as a workbook with formulas.
- Chargeable weight: actual against volumetric weight for air (÷ 6 000), express (÷ 5 000), sea LCL and road.
How to use it
- Choose the equipment and set the clearances you need.
- Paste the items (description, length, width, height, weight, cartons) or enter them, and set turning, stacking and stops.
- Read the load plan and the list of what did not fit; change the equipment or quantities.
- Fill in marks, HS codes and pieces for the packing list.
- Export the load plan PDF, the workbook or the 3D view.
How it was checked
Before every release the engine is run on cases with known answers: a 351 × 241 × 211 mm carton in a 20' container gives 16 × 9 × 11 = 1 584 in one orientation, as worked out in a public discussion, and the plan must reach at least that and stay below the volume ratio; no two boxes may overlap or leave the inside space; items marked upright, non-stackable or floor only must keep their rule; a payload of 28 130 kg must open a second container; the stop order must put the first stop at the door; and the volumetric divisors must give the expected weights.
Limits
The plan does not compute lashing, axle loads or the legal weight on the road, and loading in walls can leave more empty space than a skilled crew with mixed sizes. Pallets built first and then loaded, cylinders and air ULDs are not covered yet. Check the plan on the dock.
Last checked 2026-10-20