40ft Open Top High Cube Loading Calculator
Plan the 40OTHC envelope without treating its overall dimensions as proof that cargo can pass through the opening or travel overheight.
Test the quantity you enter and review placed and unplaced cargo. This is a planning estimate, not a maximum-capacity guarantee or transport approval.
Use the 40ft open-top high cube planner to compare your cargo with its interior and default rear-door limits, not to authorize over-height transport. CBM3 40OTHC has a 1202.9 x 235.2 x 264.9 cm envelope, about 74.946 m3, and a 28,250 kg cargo limit. The default rear door is 235.2 x 257 cm; roof metadata does not bypass it.
Open the 40OTHC loading planner. Start a new job and confirm the equipment before entering cargo. The initial selection does not start a calculation; a saved job or your own selection takes priority.
Planning profile and carrier example
| Field | CBM3 11.63.55 profile | Hapag-Lloyd fleet example |
|---|---|---|
| Length x width x height (cm) | 1,202.9 x 235.2 x 264.9 | 1,202.9 x 235.2 x 264.9 |
| Door width x height (cm) | 235.2 x 257 | 235.2 x unresolved |
| Roof opening length x width (cm) | 1,155.2 x 219.2 | 1,155.2 x 219.2 |
| Cargo payload (kg) | 28,250 | 28,250 |
| Tare (kg) | 4,250 | 4,250 |
| Maximum gross mass (kg) | 32,500 | 32,500 |
| Volume (m3) | 74.946 rectangular envelope | 74.9 published nominal |
The Hapag-Lloyd 40ft Open Top High Cube specification describes a carrier fleet example, not every container of that name. Nominal volume and the rectangular planning volume are different measures. Obtain the booked unit’s measurements and limits; missing profile values do not mean an access check passed.
Source discrepancy: The door table gives 257.0 cm height while the page’s diagram text includes 268.3 cm. The CBM3 preset uses 257.0 cm; the external conflict is not silently resolved. The disputed field is shown as unresolved in the carrier column; the software column states the current preset, not a corrected carrier specification.
Stored roof dimensions are not a lifting simulation
The catalog stores a 1155.2 x 219.2 cm roof opening, separately from the 1202.9 x 235.2 cm interior base. That roof information does not replace the rear-door filter or calculate a crane approach. An upright 260 cm diagnostic package is rejected by both automatic methods under default constraints even though it fits the modeled interior height.
The additional 260 cm test used one 40 x 60 cm, 100 kg upright non-stackable box, with Horizontal Only rotation. Both methods returned zero placed and one unplaced. This is a test of the current configured door limit, not a judgment about an operator-approved alternative loading method.
Reproduce two cargo examples
Use metric units, palletization off, Horizontal Only rotation, no global rules, Normal priority and no delivery stop. Fragile is off and no extra stack-weight limit is supplied. Leave equipment constraints at their defaults; the High Cube presets supply rear-door dimensions. Enter complete outer dimensions and weight, including any base once.
| Example | Width x length x height (cm) | Entered units | kg per unit | Input volume m3 | Stackable | This Side Up |
|---|---|---|---|---|---|---|
| A: cartons | 40 x 60 x 80 | 40 | 25 | 7.680 | Yes | No |
| B: upright 250 cm | 40 x 60 x 250 | 1 | 100 | 0.600 | No | Yes |
| Example | Method | Entered | Placed | Unplaced | Allocated containers | Placed volume m3 | Placed mass kg |
|---|---|---|---|---|---|---|---|
| A | Max Volume | 40 | 40 | 0 | 1 | 7.680 | 1,000 |
| A | Best Balance | 40 | 40 | 0 | 1 | 7.680 | 1,000 |
| B | Max Volume | 1 | 1 | 0 | 1 | 0.600 | 100 |
| B | Best Balance | 1 | 1 | 0 | 1 | 0.600 | 100 |
Example B fits the interior and configured rear-door dimensions; it does not certify the path, handling equipment or securing. The B input is 0.600 m3 and 100 kg whether placed or not. Keep a required upright package upright rather than changing permissions to obtain a passing result.
Recorded on 6 October 2026 with the installed 11.63.52 Worker and the current equipment-constraint helpers in Node. Independent checks cover counts, orientation, bounds, overlap, support and payload. These are reproducible engine examples, not actual browser, crane, lifting, floor-strength or physical-loading acceptance tests.
From a geometric plan to a loading decision
- Confirm the actual container and the intended entry route with the responsible operator. Do not equate roof length, interior length and end-door clearance.
- Review complete-unit weight, contact area, lifting provisions and securing with the loading team. CBM3’s cargo-weight ceiling and estimated center of gravity do not certify floor strength or axle loads.
- Keep height within the modeled envelope. This workflow is not an out-of-gauge booking or unlimited-height solver; ask the operator to assess any load extending beyond the assigned unit.
- Check every placed and unplaced quantity before sharing a plan. Extra search time is not an optimum-result guarantee. Account access and export availability follow the current tool controls, not a promise of unlimited anonymous use.
Related open-top and planning guides
Compare 20ft open top container loading guide, 20ft open top high cube loading guide, 40ft open top container loading guide. For the workflow, read the step-by-step planning guide, or return to the loading-space guide directory.
Keep Roof Opening, Interior Footprint and Default Door Distinct
The roof opening is listed as 1155.2 x 219.2 cm, not the full interior rectangle. A package’s geometric fit does not establish a vertical lifting route or clearance for rigging. The carrier page also has conflicting door-height information. This guide preserves that uncertainty and the separate software door limit of 257 cm; another table, diagram or locale is not a reason to silently expand the preset.
Use the same complete packed order and permissions when comparing standard and high cube profiles. Include a loaded pallet’s base height and tare once, keep it upright and avoid repalletizing it. The 250 cm upright test is one 0.600 m3, 100 kg unit and fits the current defaults. The 260 cm diagnostic exceeds the default door height despite fitting the interior. Neither result is floor-strength, lifting or transport approval; known cargo mass is not VGM.
40ft Open-Top High Cube Questions
How much cargo fits in a 40OTHC?
Enter actual quantities, packed dimensions and permissions. The nominal carrier volume, rectangular envelope and placed cargo volume are different measures. The recorded forty-carton order does not establish unrestricted maximum capacity.
Why does the 260 cm upright package remain unplaced?
It exceeds the 257 cm default rear-door height. Both methods preserve that constraint even though the interior is taller. The outcome is expected default behavior, not an engine failure or a judgment on an independently approved roof lift.
Can the conflicting carrier door value be used to make it fit?
Do not choose the more favorable figure without verifying the actual assigned unit. The conflict remains explicit. The configured door dimensions stay separate from the unconfirmed carrier field.
Can cargo protrude above the simulated envelope?
This workflow does not model unlimited height or make an out-of-gauge booking. Confirm any protruding load, its handling and transport requirements with the operator; do not interpret the open roof or removed bars as permission.
Is a balanced plan enough for heavy machinery?
No. The plan’s known masses and geometric distribution do not verify lifting provisions, local floor contact loads, securing or route limits. Review the complete load with the responsible loading team before organizing the shipment.
References and Check Dates
Named technical reference: Hapag-Lloyd 40ft Open Top High Cube fleet page, read 7 October 2026; its door-height conflict remains unresolved. Current 11.63.55 profile/source compatibility was checked 7 October. Recorded 11.63.52 carton, upright and door-diagnostic tests retain their 6 October date. The AI image is conceptual, not a loading result or safety demonstration.
Software compatibility note, 8 October 2026 (Europe/Istanbul): The planning profiles and recorded example inputs were checked against the source-reviewed CBM3 11.63.56 candidate. The earlier example execution dates remain unchanged; this compatibility review is not a new optimization run or physical-loading test. Fleet-provider and carrier references are not manufacturer approval. Confirm the actual unit dimensions, payload and securing requirements.
How to inspect and hand over a loading plan
Use the selected plan and the complete shipment data. Recheck the result after changing cargo, equipment or handling rules.
See every cargo unit in context
Search the cargo inventory, focus on an item and switch between realistic, operational, top and side views. Inspect pallet layers and height sections.
The inventory separates requested units, units in the selected container, units in other containers and unplaced units. Select a row to find its cargo in the scene; playback and height sections show only part of the complete plan.
Use pallet details to inspect full, partial and mixed pallets. A height section filters the view; it does not remove cargo from the plan. Vehicle bodies and wheels provide visual context.
Prepare clearer warehouse instructions
Use product colors and short codes, named groups and delivery stops. Choose a summary or warehouse PDF for the selected plan.
Assign product colors and short codes to connect the cargo table, 3D view and reports. Group and stop names improve instructions; apply the appropriate loading rules when a sequence must be enforced.
Compare verified alternatives and review any manual moves. A manual reallocation affects the current preview and PDF; saved or shared inputs recalculate the automatic arrangement when reopened. Export again after changes.
Read the estimated center of gravity
Review longitudinal, lateral and height coordinates from known cargo and pallet masses. Check the displayed origin and units before comparing plans.
The estimate assumes each item's mass is centered and excludes vehicle tare. Missing or stale additional-material records can leave the complete-load assessment unavailable; explicitly declare none when no extra materials are present.
Coordinates use the load-space frame, not road height. For Step Deck, X starts at the raised front end and Y at the lower-deck datum; axle-form distances run from the rear toward the cab.
Distinguish the loading unit from its carrying vehicle
This loading unit alone does not define an axle configuration.
Inspect cargo and pallet weight distribution in this loading space. A container, swap body or air-cargo unit does not identify the road chassis, rail wagon or aircraft carrying it.
Axle estimates are available after selecting a supported complete road or rail vehicle. Enter its actual mounting positions, full empty reactions and applicable limits; do not reuse a trailer reference as container or aircraft approval.