01
Test the permitted carton orientations
The calculator tries all six axis-aligned orientations when rotation is allowed and keeps the highest simple-grid count.
CalculatorsFREE · NO SIGNUP
Container Loading Calculator
Plan a carton load against the internal dimensions and payload of a common freight container, with every limiting assumption visible.
FREE TO USEA LOOK ATLAS TOOL
01 USE IT NOW02 NO ACCOUNT03 FIELD NOTES BELOW
WORKING INPUTS
Match one packed carton to one container.
LIVE RESULT
Practical carton load
392 cartons20 ft general purpose simple-grid estimate; confirm exact equipment, doors, loading access, balance, dunnage, and cargo securing.DIMENSION FIT392 cartons
PAYLOAD FIT2,486 cartons
VOLUME USED74.29%
PAYLOAD USED15.76%
11
SPACE MEETS PAYLOAD
Treat container fit as two limits.
A carton can run out of geometric positions before payload—or hit payload while floor and cube remain.
WORKING VIEW
392 CARTONS20 FT · 20 × 16 × 12 IN
METHODminimum of demand, best orientation fit, and payload fit
WORKING NOTEBest simple grid before dunnage, doors, balance, and loading access
INPUTS → CLEAR OUTPUT
THE FIELD NOTES
Quick answer above. Better decisions below.
Use the result now, then read the practical notes for assumptions, examples, limitations, and the choices behind it.
20 FT · 20 × 16 × 12 IN392 CARTONS
Best simple grid before dunnage, doors, balance, and loading access
02
Apply payload as a separate ceiling
Carton weight limits the count even when geometric positions remain.
03
Read utilization as a planning signal
Volume and payload utilization identify which constraint is tighter.
04
Confirm the physical loading plan
The result excludes pallets, bracing, segregation, axle limits, dangerous-goods rules, and cargo-securing engineering.
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Test the permitted carton orientations
The calculator tries all six axis-aligned orientations when rotation is allowed and keeps the highest simple-grid count.
It does not interlock cartons or simulate a mixed-SKU load.
Apply payload as a separate ceiling
Carton weight limits the count even when geometric positions remain.
Use the equipment plate and booking confirmation for the exact container rather than assuming every unit matches a nominal preset.
Read utilization as a planning signal
Volume and payload utilization identify which constraint is tighter.
Unused cube does not guarantee usable loading space when doors, dunnage, weight distribution, or access intervene.
Confirm the physical loading plan
The result excludes pallets, bracing, segregation, axle limits, dangerous-goods rules, and cargo-securing engineering.
Use it for a first pass, then validate the real stow with the carrier and loading team.
Questions, answered.
How does this container loading calculator place cartons?
It compares simple axis-aligned grids across the allowed carton orientations, then applies demand and payload limits.
Does the largest carton count guarantee the load will fit?
No. Door clearance, pallets, dunnage, weight distribution, bracing, mixed SKUs, and real equipment tolerances can reduce usable capacity.
Which container dimensions should I use?
Use the specific equipment specification or plate whenever available; presets are representative planning dimensions only.
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