> For the complete documentation index, see [llms.txt](https://docs.commercelayer.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.commercelayer.io/core-api-reference/packages.md).

# Packages

The package object and the allowed CRUD operations on the related resource endpoint

Packages are physical packs or boxes stored in a stock location with specific sizes and ready for shipment. Each stock location in a market can have its own set of defined packages with a pre-defined package `length`, `weight`, and `height`. That information about the package dimensions — required for the package creation — is used by [shipping carriers](/core-api-reference/carrier_accounts.md) to calculate shipping rates.

<details>

<summary>Data model</summary>

Check the related [ER diagram](/data-model/shipping/parcels-packages-and-pickups.md) and explore the flowchart that illustrates how the package resource relates to the other API entities.

</details>


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