Choose High Cube for a height problem
A warehouse has twenty-four Euro pallets ready for shipment. Each finished load is 2500 mm high, including its pallet base and protective cap. The planner has already accepted their floor arrangement, but the booking request says only forty-foot container. This is a height selection problem. Choosing High Cube can change whether the loads fit through the opening and beneath the roof. It does not create extra floor positions when the internal length and width remain the same. Start by separating those two decisions in the shipment record.
High Cube describes an equipment height class. It is not a synonym for pallet-wide, and it is not a description of refrigerated equipment. A standard dry High Cube, a pallet-wide High Cube and a refrigerated High Cube can have different widths, usable lengths and loading conditions. Ask for the complete equipment type rather than treating the words High Cube as a universal dimensional preset. This page compares standard dry equipment and then identifies the checks needed before an actual load plan can be accepted.
Calculate what the extra height actually changes
The site’s forty-foot Standard preset is 12032 × 2352 × 2395 mm, with a 2340 × 2292 mm door. Its dry High Cube preset keeps the 12032 × 2352 mm floor and uses 2700 mm inside height and a 2597 mm door height. The change in modeled interior height is 2700 − 2395 = 305 mm. The change in modeled door height is also 2597 − 2292 = 305 mm. These are preset differences, not a measurement of the unit that will be delivered.
A 2500 mm loaded height exceeds the Standard preset interior by 105 mm and its door by 208 mm. It sits 200 mm below the High Cube preset interior and 97 mm below its door. Those differences are geometric residuals. They are not handling allowances prescribed by the carrier. The loading team must determine the required entry space for the equipment and method being used. An uneven floor, protective top sheet or an inaccurate finished-height measurement can matter even when the drawing shows a positive residual.
| Input or comparison | Standard preset | High Cube preset |
|---|---|---|
| Internal floor | 12032 × 2352 mm | 12032 × 2352 mm |
| Internal height | 2395 mm | 2700 mm |
| Door height | 2292 mm | 2597 mm |
| 2500 mm load versus door | 208 mm above | 97 mm below |
| Zero-gap Euro fixture | 25 floor footprints | 25 floor footprints |
Do not convert spare height into a second tier automatically
If a load is 1300 mm tall, two such loads have a combined envelope of 2600 mm before any intervening materials. That arithmetic sits beneath the 2700 mm High Cube preset interior but above its 2597 mm door. More importantly, the floor engine models one floor level; it does not decide whether another loaded pallet may rest on the first. Pallet and packaging support, lower-load compression, restraint and the handling process require a separate physical plan. The result cannot be doubled merely because a height division yields two.
The same caution applies when rebuilding a pallet to exploit extra height. For cases that are 250 mm high on a 144 mm base, a hypothetical total loaded-height limit of 2500 mm allows floor((2500 − 144) / 250) = 9 complete layers. The resulting height is 2394 mm. A tenth layer would give 2644 mm. That is a case-layer calculation on one pallet, not a container pallet-stack calculation. Weight and packaging performance can impose a lower layer limit, and neither is established by the High Cube name.
Keep the floor model and its status visible
For identical Euro footprints on the historical 12032 × 2352 mm floor, the site has a verified zero-gap twenty-five-position fixture. A basic uniform grid gives ten 1200 mm positions along the length and two 800 mm positions across, or twenty positions. A mixed layout can improve that count. The candidate search combines finite strip enumeration and several MaxRects heuristics. It is not an exhaustive search of every possible packing. A best-found result for edited inputs must retain that label; supported fixture or upper-bound conditions are needed for the optimal label.
Allowing rotation means each footprint may turn ninety degrees in the final drawing. It does not establish that a forklift can carry it through the opening in that orientation or rotate it once inside. It also does not mean the program accepts two pallet sizes together. Use the completed loaded footprint, including any overhang or protective boards, as the identical rectangle. If the shipment contains several sizes, plan explicit zones or obtain a separate mixed-cargo layout rather than averaging the dimensions.
Resolve the current carrier width discrepancy
Hapag-Lloyd’s current High Cube page shows 2352 mm width in its illustrated dimensions but 2350 mm in the inside-dimension table. Its table lists 12032 mm length and 2700 mm height, and its door table lists 2340 × 2597 mm. This guide identifies the discrepancy because a narrow residual can control fit. Do not claim that the larger width is guaranteed. Check both widths as a sensitivity exercise if necessary, then request the accepted specification for the assigned equipment.
For two 1165 mm square loads, the pair occupies 2330 mm across. On a 2350 mm width, only 20 mm remains before wall clearance and an inter-load gap; on 2352 mm, 22 mm remains. An illustrative 10 mm allowance at each side uses all twenty millimetres in the first case. Even a small additional gap then changes feasibility. This example explains how apparently minor differences can matter. It supplies no universal clearance recommendation and does not imply that either equipment example is suitable for those loads.
Compare your actual height requirement
First keep the footprint, rotation, gap and wall clearance identical in Standard and High Cube runs. Record the floor count separately from the heights. Then list each finished load’s measured total height and compare the tallest with the assigned unit’s door and accepted usable height. If rebuilding layers is proposed, calculate the revised case quantity and gross pallet weight in the TI-HI tool before reviewing its packaging and handling suitability.
Write your own input record beside this example: equipment identifier; dimension source and date; actual loaded footprint; rotation; gap; wall clearance; loaded height; result count and proof status. Retain the record with the layout.
Make the booking request specific
Send the equipment request with the number of completed pallets, largest footprint, tallest loaded height and gross cargo mass. Identify whether your plan needs standard dry High Cube or another family. Include the proposed loading method and any restriction on turning a pallet. A quotation based on a broad equipment class is useful for early budgeting, while the final load plan needs the dimensions and conditions for the unit actually provided. Update the record when the equipment identifier is known.
If High Cube offers no floor benefit and all heights already fit the accepted Standard envelope, compare the operational and commercial consequences without inventing an extra-capacity claim. The relevant benefit may be easier height accommodation or a changed case-layer plan, but it must be demonstrated from your cargo inputs. Retain both calculations so a later planner can see why the equipment was selected and can recalculate if the carrier assigns a different fleet series.
Primary sources and scope
Hapag-Lloyd dry High Cube: Representative dimensions and the width discrepancy discussed above; fleet units vary.
Hapag-Lloyd Standard: The separate standard dry example used for comparison.
EPAL Euro pallet: 1200 × 800 mm footprint and 144 mm base reference.