Demurrage Charges by Shipping Line

Why Demurrage Varies by Carrier

Demurrage is not a universal fee. Each shipping line can publish different free-day allowances, rate slabs, equipment rules, and country-specific conditions. A quote that looks cheap at freight level can become expensive if the carrier offers fewer free days or higher post-free-time charges.

ShippingRates normalizes carrier-backed D&D tariff data into comparable structures so teams can evaluate demurrage exposure before a container is already stuck at the terminal.

• Free days by carrier and market
• Dry and reefer container differences
• Daily slab escalation
• Import, export, and combined D&D scopes where supported

Operational Use Cases

Import teams use demurrage comparison to choose safer carrier options when customs, warehouse availability, or trucking capacity is uncertain. Forwarders use it to explain quote differences and prevent customers from optimizing only for ocean freight.

The calculator page is a public entry point; API users can automate the same logic across many quote scenarios.

Validation Rules

D&D data is especially easy to corrupt because tariffs mix port scope, equipment families, day ranges, effective dates, and trade conditions. ShippingRates promotes only rows that fit the current schema safely and keeps ambiguous grouped scopes out of production results.

The methodology page documents this carrier-backed validation model in plain language for both customers and crawlers.

Why the Methodology Matters

Every growth page in this cluster points to the ShippingRates methodology because carrier-backed freight intelligence needs visible provenance. The product is strongest when users can see how source data is acquired, validated, promoted, and limited.