> For the complete documentation index, see [llms.txt](https://autodesk.ifc-manual.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://autodesk.ifc-manual.com/revit/ifc-export-settings-dialog/property-sets/base-quantities.md).

# Base Quantities

**Export base quantities** will include another type of property sets defined in the IFC schema as well, which are meant specifically for estimation and QTO purposes.

For a wall these quantities typically look like this:<br>

<figure><img src="/files/3pc2vCdeyWIbkmHtCIoX" alt=""><figcaption></figcaption></figure>

&#x20;  &#x20;