> For the complete documentation index, see [llms.txt](https://docs.besmart.software/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.besmart.software/3d-modeling-and-design/precast-concrete/feature-descriptions/floor-concrete-slabs/load-families.md).
# Load Families
This will load default Structural Framing families into your project.
Select what should be loaded:
**Main Families** - Structural Framing Families that come with the software: double tee, hollow core, solid.
M\_MF\_Invisible Element - Family needed by the software to fill empty settings in configurations.
M\_MF\_Service Holes - could be used to insert a cut perpendicular to slab direction.
**Sample schedule**s and **Sample tags** can be loaded to be used in project or you can use your own Tags and Schedules.
**Company Catalog Name** - use Browse to specify additional folder from which other families should be loaded with this command.
Loaded Families have special parameters to cut sides and ends based on the shape of reference floor.
You can use your Structural Framing Families with the software but ends will not be cut automatically.
So, if you want to use a differently shaped Structural Framing element, it's better to modify provided Families:
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.besmart.software/3d-modeling-and-design/precast-concrete/feature-descriptions/floor-concrete-slabs/load-families.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.