One shipment total can contain several calculation records
Different carton masses or carrier types belong in separate weight calculations. Their gross totals can be added when they refer to the same shipment boundary, but their dimensions cannot be averaged into one representative packing input. This distinction is useful when a quote needs total weight while a loading review still needs each unit's outside dimensions. The total answers how much the defined load weighs. It does not answer where the different footprints fit together.
Use two fictional groups. Group A contains 110 cases at 6 kg, capacity forty-eight, tare 25 kg and protection 3 kg per pallet. It requires three pallets and totals 744 kg gross. Group B contains seventy cases at 4 kg, capacity thirty, tare 18 kg and protection 2 kg per pallet. It also requires three pallets. These are assumed components for an arithmetic exercise, with no claim that either packaging group has been tested or accepted for transport.
Reconcile each group before summing
Group B has two thirty-case units and a ten-case tail. A full unit contains 120 kg of cases plus 20 kg of tare and protection, giving 140 kg gross. The tail contains 40 kg of cases and is 60 kg gross. The group total is 140 + 140 + 60 = 340 kg. An independent check gives 70 times 4 + 3 times 20 = 340 kg. Group A's three-unit distribution is 316, 316 and 112 kg.
The combined record has six pallets, 180 cases, 940 kg of packed cases and 144 kg of carrier and protection components. Combined gross is 744 + 340 = 1084 kg. The heaviest defined unit is 316 kg, not the shipment average of approximately 180.67 kg. Keep the two quantity units identifiable: one case of A is not interchangeable with one case of B simply because the combined count can be added. If a case is reassigned between groups, revise its own quantity and mass record before repeating the combined total.
| Record item | Value or interpretation |
|---|---|
| Group A | 110 cases; 3 pallets; 660 kg cases; 84 kg handling; 744 kg gross |
| Group B | 70 cases; 3 pallets; 280 kg cases; 60 kg handling; 340 kg gross |
| Combined boundary | 180 cases; 6 carriers; 1084 kg gross |
| Heaviest recorded carrier | 316 kg in group A |
| Packing interpretation | No joint arrangement follows from adding the mass totals |
Keep two reproducible calculator links
Run group A's capacity calculation and group B's capacity calculation separately. The tool's single-group inputs describe one packed-case mass and one common handling allowance. It does not provide a mixed-product shipment ledger. Save each result with its group definition and add the totals in your own record.
Do not enter 180 cases at the unweighted average of 6 and 4 kg. That would assign 5 kg to every case and report only 900 kg of cases, forty kilograms below the actual example. A weighted mean of 940 / 180 could reproduce goods mass, but it would conceal the case groups and would still not identify each carrier's gross mass. Separate source records are more useful than a mean that loses the structure needed for review.
Dimensions stay attached to their own group
Assume group A uses a 1200 by 800 mm finished footprint and group B uses a 1000 by 1000 mm finished footprint. These hypothetical envelopes are not a proposed mixed packing. An average footprint of 1100 by 900 mm describes none of the six units. Entering that mean six times into an identical-rectangle engine can produce coordinates that do not accommodate the actual loads. Retain the physical list for an appropriate mixed-load process or explicitly partitioned zones.
The mixed-size shipment guide explains zone calculations and their limitations. A separate group fitting in a container does not prove both groups fit simultaneously; they may each use the same floor region in independent runs. Likewise, the sum of separate pallet cubes below an equipment cube is only a volume comparison. Joint geometry, door passage and loading sequence remain other questions that require their own evidence.
Record the combined boundary without losing the groups
Group A: 3 units, weights 316/316/112 kg, A's measured envelopes. Group B: 3 units, weights 140/140/60 kg, B's measured envelopes. Combined gross 1084 kg. Include each group's calculation mode, component basis and measured date. State excluded objects such as spare pallets or separate restraint bundles. Record them separately if they actually accompany the shipment.
Resolve overlapping components and split destinations
If one packaging bundle serves both groups, allocate or record it once using a stated convention. Including its entire mass in both group extras would double count it. If A and B travel on separate destinations or departures, their combined total may be useful for a report but not for one vehicle payload comparison. Save the transport boundary explicitly. A shipment total should correspond to the units physically assigned to that movement, rather than a convenient business reporting total.
When the actual scale records arrive, compare group or unit sums on the same basis. A discrepancy in one group should not be hidden by an opposite discrepancy in another. Preserve the differences so they can be traced to measurement, omitted packaging or changed quantities. The final useful result is six identifiable load records and a transparent sum, with no implied acceptance of a mixed arrangement from the weight arithmetic alone.