# Main rebar - Crank

There is an option to create a crank for the main rebar.

<div align="left"><img src="https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2Fzh52ssenJJRF8mSTvmIH%2F0.jpeg?alt=media" alt=""></div>

The number of rows visible in this tab depends on user settings in Layout tab.

**Row position** and **Rebar bar type** – come from Layout tab.

Other parameters **T\_L, T\_h, T-v, etc**. follow the sketched configuration.

**T** means bar end, at the top of the column. **B** means start of the bar, bottom of the column.

**Rotate Corner bars 45** – rotate left-most and right-most bars of each Front, Back rows.

**Measure from bar end** – by default, start of the crank will be the distance from Top/Bottom face of the column, but if this option is selected, distance will be measured not from the column, but from the end of the bar.

**NOTE:** extension of the bar outside the column is defined in Layout tab.

![](https://239424168-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqtUsszuAWXIZhQhrvjnb%2Fuploads%2FDSY4lNPqH5tclPguEgoH%2F2.png?alt=media)