> 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/archive/wood-framing-work-in-progress/truss-wood-framing/create-piggyback-roof-truss-type-from-model-lines.md).

# Create Piggyback Roof Truss Type From Model Lines

* Draw a model line and set roof cutoff level to desired height

![](/files/Q58yatBLgbI3YZglzGYf)

* Select a model line and run **Create Roof Truss Type from Model Lines**

![](/files/QkPEzfmkM1HHYoF81Eqb)

* Name new truss type - select **OK** and wait for truss to be generated

![](/files/8fPIjJaTmV92lgHc86Ps)

* Select Model line and run **Create Section View by Model Line**
* Set **Roof Cutting Leve**l to **None**
* Draw new model line for piggyback truss

![](/files/XU2j04mtMEKgq9jOLEBC)

* Select a model line and run **Create Piggyback Roof Truss Type from Model Lines**
* Use **Truss Builder** to design new truss - select **OK**

![](/files/vh7c4KzN9Za1AwSUGdf3)

* Select Group, write new truss family name and fill values of other parameters
* New truss will be created in the place of model line. Section view will be automatically deleted
* Edit type parameter of a new created piggy back truss - Truss Offset

![](/files/PoZoHRmJyQFNcHC2i9sU)


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