A partial top layer still has a highest point
Measure the finished loaded pallet from its bottom reference to the highest outside point in its intended shipping condition. A partial layer contains fewer cases than a complete layer, but that does not automatically make it shorter. If its cases have the same vertical height as those below, the tallest occupied column still reaches the next layer height. Empty positions change occupancy and case quantity; they do not lower the top of an occupied column.
Keep the pallet base, the full layers, the actual top arrangement and any protruding cap or packaging in the record. If the top contains different case heights, identify the tallest supported point rather than averaging the top cases. This guide describes envelope arithmetic and observation. It does not approve bridging, unsupported cartons, stacking strength or the stability of a sparse top layer; those depend on the actual goods and handling arrangement.
Compare two placements of the same three remaining cases
Assume a base height of 144 mm and four complete layers of cases that are each 250 mm high. The base plus those layers is 144 + 4 times 250 = 1144 mm. Placing three more identical cases side by side on the next level gives a highest point of 1394 mm. That top level is partial in quantity, but its occupied positions still add the full 250 mm to the loaded height.
For a dimensional comparison only, placing those same three cases one above another in a column adds 750 mm and gives a highest point of 1894 mm. The quantity is unchanged while the envelope is very different. This is not a recommendation to build such a column. It shows why the number of loose remaining cases is insufficient to determine partial-pallet height. The actual arrangement and its accepted support must be known or observed.
| Arrangement | Cases added | Highest loaded point |
|---|---|---|
| No top cases | 0 | 1144 mm |
| Three 250 mm cases side by side | 3 | 1394 mm |
| Three 250 mm cases in one vertical column | 3 | 1894 mm, dimensional illustration only |
| Three 200 mm cases side by side | 3 | 1344 mm before extra protrusions |
| 200 mm top cases with a 20 mm cap above | 3 | 1364 mm when the cap sets the highest point |
Do not divide remaining case count into an average height
If a complete layer has eight positions and only three are occupied, multiplying 250 mm by 3 / 8 would give 93.75 mm. Adding that average to 1144 mm would report 1237.75 mm, even though the three 250 mm cases reach 1394 mm. The average describes neither their outside height nor the top envelope. A volume fraction cannot substitute for the vertical measurement of the occupied load.
For a partial layer of shorter 200 mm cases, the highest point is 1144 + 200 = 1344 mm when no other item projects above it. If a cap adds an observed 20 mm above that point, the outside height becomes 1364 mm. Do not add a cap a second time when the finished height was already measured including it. Record whether a height came from summing identified components or directly measuring the completed unit.
Quantity and mass still follow the actual case count
With eight cases in each of four complete layers and three on top, the pallet holds 4 times 8 + 3 = 35 cases. Assume each packed case weighs 12 kg, the actual pallet weighs 25 kg and the wrap and other pallet-level extras weigh 3 kg. The gross mass is 35 times 12 + 25 + 3 = 448 kg. Treating the partial level as eight cases would instead calculate forty cases and overstate the mass by 60 kg.
The opposite shortcut is also problematic: using thirty-five cases to prorate the five-layer height. The actual count determines case mass, while the occupied arrangement determines the highest point. Keep both facts in the same record without forcing them into one average. If the partial pallet uses a different base or accessory package, use its actual tare and extras instead of automatically reusing the full-pallet mass inputs.
Record a partial top layer
Write the base height, complete-layer count, cases per complete layer, top-case count, each relevant vertical case height, actual placement and highest protrusion. For the example record eight positions, four complete layers and three top cases side by side: thirty-five cases and 1394 mm before additional packaging. Include gross mass inputs separately and identify any top-layer placement that is still undecided.
Use each calculator for the geometry it represents
The TI-HI calculator estimates complete identical layers from its height and weight inputs. It does not encode every arrangement of three remaining cases. Once the partial unit is measured, use the pallet cube calculator in its known loaded-dimensions mode to record the actual outside envelope. Enter total loaded height, including the base once, rather than cargo height alone.
For the stated 1200 by 800 mm footprint, a measured total height of 1394 mm gives an envelope volume of 1.33824 cubic meters. This rectangular volume includes empty positions above and between parts of the load; it is not the sum of carton material or product volumes. If wrap widens the footprint, use the finished outside length and width instead. A cube result does not confirm the top arrangement is suitable for transport.
Close the record when the partial unit is completed
Recheck the highest point after caps, wrap and restraints are applied, and preserve the packaging condition associated with the measurement. If the remaining cases have not yet been placed, mark final height unresolved. A proposed layer arrangement can support a preliminary estimate, but it should not be labeled a measurement of a finished unit. Document any subsequent rearrangement so the dispatch record describes the pallet actually presented for shipment.
Reference and example scope
EPAL 1 specification supports the example 144 mm base reference only; partial-layer heights and masses are stated scenario inputs. The examples use explicitly stated measurements or assumptions; they are not instrument standards, tolerance rules or approval of your load.