40ft High Cube Demurrage Calculator
Price 40ft high cube dwell with special-equipment free time and tier rates — shorter clocks, steeper brackets.
Set a tier's days to 0 to mean “all remaining days”.
Special-equipment tariffs apply — read the 40ft High Cube column of your carrier's D&D schedule, not the standard dry-box column.
With your numbers: 10 days − 4 free = 6 chargeable days = 3×$165 + 3×$250 = $1,245 per unit.
Sources & references
- Carrier special-equipment D&D tariff columns (per country/trade)
- Container Owners Association — special equipment operations notes
Demurrage, detention and storage tariffs are set by each carrier, terminal and contract and change frequently. The preloaded figures are editable industry-typical examples, not quotes — always verify against the current published tariff or your service contract before paying or disputing an invoice.
A 40ft high cube is the workhorse of modern container trades — an extra-foot-taller 40' box that now dominates dry fleets — and in demurrage terms it is not a normal box. High cubes follow standard dry tariffs at most ports, but their sheer volume share means HC-specific shortages appear first in tight markets — and per-diem on a scarce HC can spike via general rate increases mid-dwell. This calculator prices its dwell with equipment-realistic defaults: 4 free days and tiers reaching $350/day.
About 40ft High Cube Demurrage Calculator
Read your tariff's special-equipment column, not the dry-box column: free time, daily brackets and waiver flexibility all differ, and the difference compounds daily. Enter the actual brackets above; the per-tier breakdown shows where a long dwell crosses from expensive into punitive. The operational rule for specials is simple: plan the pickup before the vessel arrives. Scarce equipment means carriers police these clocks hardest — but it also means a documented carrier-side delay (late discharge, unavailable equipment at return) is leverage, because they want the unit back as much as you want the charges gone.
How to use 40ft High Cube Demurrage Calculator
- 1Enter days since discharge and how many units are affected.
- 2Set your free days and edit the tariff tiers to match the published tariff or your contract — every figure is editable.
- 3Read the per-tier breakdown and the worked example showing exactly how the total is built, day by day.
- 4Change the inputs to compare scenarios (pick up now vs later) before the charges harden into an invoice.
Why use 40ft High Cube Demurrage Calculator?
- ✓Per-tier breakdown mirrors how carrier and terminal billing systems itemise invoices
- ✓Every figure — free time, tier days, rates — is editable to match any published tariff
- ✓Instant what-if comparisons before charges harden into an invoice
- ✓Free and private — all math runs in your browser
Frequently asked questions
How much free time does a 40ft high cube usually get?+
Less than dry boxes: 4 days is typical where dry cargo might get 4–7, because the equipment is scarcer and (for powered or OOG units) its yard slot is more expensive to provide. Service contracts can extend it — worth negotiating if you regularly ship this equipment type.
What does a 10-day dwell cost on a 40ft high cube?+
With the example tariff (4 free, then $165 for 3d, $250 for 3d, $350 after): 6 chargeable days = 3 × $165 + 3 × $250 = $1,245. Special-equipment brackets vary more between carriers than dry rates do — recompute with your actual column.
Is 40HC demurrage different from standard 40' rates?+
At most terminals and carriers the dry tariff treats 40' and 40HC identically (per the 40' column). The practical difference is availability economics: when HCs run short, carriers push harder on equipment turn — expect less waiver flexibility on HC per-diem during peak season than the identical tariff line suggests.
Why are special-equipment D&D rates so much higher?+
Fleet scarcity. Carriers hold small pools of specials, and one unit dwelling two extra weeks can cost them a booking elsewhere — the tariff transfers that opportunity cost to whoever is sitting on the unit. The rates are an incentive mechanism first and a revenue line second, which is also why documented fast-turn shippers get better waiver treatment.
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