> For the complete documentation index, see [llms.txt](https://enercalc.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enercalc.com/docs/sel-user-manual/calculation-modules/miscellaneous/rebar-development-lengths.md).

# Rebar Development

How to calculate tension, compression, and hooked rebar development and splice lengths per ACI 318.

This module calculates development and splice lengths for deformed steel rebar in concrete. Since typical development lengths are readily available in tables, this module is primarily for developing tables of development lengths when unusual conditions affect the lengths.

The module uses the relevant sections of ACI 318 to determine straight tension & compression development and hooked tension development lengths.

<figure><img src="https://3283832020-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FiBJmBoewuy4ZcBC7RF3m%2Fuploads%2Fgit-blob-4b88c4e4ee1aed8dbee16c6f2f350471c319aa2a%2Fimage.png?alt=media" alt="Rebar Development module interface for calculating rebar development and splice lengths."><figcaption><p>Rebar Development module</p></figcaption></figure>

### Print This Information

Check this box if you want the development calculation on the current tab to appear on the printout.

### This Bar

Enter a description for the current development calc.

### Bar Details

Enter the basic stress info for this bar.

### Straight Development

This section calculates tension & compression bar development according to ACI. Please refer to the relevant ACI code for details.

### Hooked Development

This section calculates tension hooked rebar development according to ACI. Please refer to the relevant ACI code for details.


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