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Freight density
Find your shipment density and estimated freight class.
Freight & shippingFREIGHT & SHIPPING
Pallet & Container Load Planner
Plan mixed-size cargo with rotation, stacking, door-clearance, and payload constraints.
Pallet load planner
Plan mixed-size cargo with rotation, stacking, door-clearance, and payload constraints.
CARGO & AVAILABLE SPACE
item, quantity, length, width, height, weight, rotate, stack_limit100 rows maximum
Upright dimensions and gross weight per unit. Rotate: yes/no. Stack limit: identical units only. Maximum 200 units.
Available cargo space
Mixed-cargo loading scenario
34units placed
FEASIBLE HEURISTIC / NOT GUARANTEED OPTIMALUPRIGHT STACKS / TOP VIEW 1,203.2 x 235.2 cm
PALLET-A: 12/12CRATE-B: 6/6CARTON-C: 16/16
S1 / PALLET-A2 units / 900 kg / As enteredx 2, y 2 cm / 120 x 100 x 220 cm
Requested / unplaced units34 / 0
Floor stacks18
Occupied floor area56%
Cargo payload used7,600 / 26,700 kg
Payload utilization28.5%
Placed cargo volume24.768 m3
Top view of upright, identical-item stacks only. Entire stacks must fit the entered door opening and usable height. Footprints and gaps round up to 1 mm; floor dimensions round down. The heuristic may leave cargo unplaced even when another arrangement is possible. This is not a loading sequence, stability, axle-load, floor-strength, or securing approval.
Cargo coverage and exceptions
0 unplaced units| Item | Requested | Placed | Unplaced | Rotation allowed | Maximum stack | Status |
|---|---|---|---|---|---|---|
| PALLET-A | 12 | 12 | 0 | Yes | 2 | All placed |
| CRATE-B | 6 | 6 | 0 | No | 1 | All placed |
| CARTON-C | 16 | 16 | 0 | Yes | 3 | All placed |
BEHIND THE NUMBER
How the calculation works
Mixed mode groups only identical items into upright stacks up to the entered stack limit, usable height, and door height. It uses an established MaxRects packing library with three deterministic orderings and selects the plan placing most units, then most cargo volume. It does not prove optimality. Enter packaged gross dimensions and weight. The editable cargo-space example is not a booking specification; verify actual equipment. Identical-pallet mode retains the original one-layer calculation.
Mixed mode: best of three MaxRects floor-packing passes, constrained by upright stacks, permitted rotation, clearances, and cargo payload. Identical mode: compare two uniform floor grids.
When this calculation helps
Use uniform mode for one repeated pallet footprint and mixed mode for a collection of upright items or permitted homogeneous stacks. The floor layout helps expose a long crate or unrotatable item that an aggregate cube calculation would miss.
Check the interpretation
Check every unplaced quantity and each stack assumption. A heuristic layout does not prove optimality, loading sequence, stability, restraint, floor strength, or axle compliance. Confirm the actual equipment and handling process before translating the diagram into a loading instruction.
Example equipment dimensions vary by carrier and manufacturer. Axle loads, load restraint, usable payload, clearances, and cargo-specific handling still need review.
UNECE CTU Code for packing and securing cargoWorked example: Container Load Planning: Why Enough Cube Does Not Prove a Fit
Good to know
Is the mixed plan guaranteed optimal?
No. Three heuristic passes are compared. Cargo may remain unplaced even when another feasible arrangement exists.
Can I stack different products?
No. Only identical-item stacks are modeled. A stack limit is your handling assumption, not a strength certification. Entire stacks must pass the entered opening. Loading sequence, axle loads, stability, securing, and floor strength require separate review.