This project required the ORIGIN team to design LGS roof framing for a single-family residential building, with the condition that the truss design be suitable for further fabrication using a FRAMECAD rollformer. This would ensure a streamlined fabrication process and enhanced construction efficiency.


Input: Structural drawings set.

Project deliverables:

  • Roof trusses layout;
  • Truss reports;
  • FRAMECAD CNC files for LGS panels production.
Subservices Light gauge steel design and detailing
Industry Residential
Object type Single-family home
Area 1100 m² / 11850 ft²
Tools used Autodesk Revit, Strucsoft MWF Advanced Metal, SCIA Engineer, Tekla Tedds
Project stages
1. LGS truss modeling;
2. LGS truss layout drawings and reports
3. LGS CNC export and shop drawings
Code/Authority List:
  • 2022 California Residential Code (CRC);
  • 2022 California Building Code (CBC);
  • ASCE 7-16 minimum design loads and associated criteria for buildings and other structures.

Step 1 — LGS truss modeling

The ORIGIN team kicked off the project by creating the Revit model.

We delved into the existing architectural drawings to create an accurate model of the roof only. Later on, we would base our LGS framing on this model, so we needed to be extremely precise at this stage.

We identified several discrepancies and submitted the RFIs to the architect for further clarification. Once all inquiries were resolved, we generated LGS framing using the automated features of Strucsoft MWF Advanced Metal software. This tool helped us to streamline the process significantly without compromising quality.

Step 2 — LGS truss layout drawings and reports

At this step, we worked on truss layout plans and prepared the report of each individual truss.

To do that, we used the capability of Strucsoft MWF Advanced Metal software to automate truss calculations. This way, we could save up some time otherwise spent on unnecessary manual work.

With the greatest part of the work automated, the ORIGIN team’s remaining tasks were verifying whether the truss passed the structural check and ensuring each report contained all the necessary data as per the Codes.


Step 3 — LGS CNC export

As the final step is LGS panel production, we exported CNC files from the Revit model. Later, they were used with the FRAMECAD rollformer. Truss assembly relied on truss reports, illustrating a diagram for each truss. This way, the process proved to be well-organized and efficient.


Click on preview to view high resolution PDF drawings

The precise alignment of LGS framing with the geometry of the building, eliminating potential installation issues on-site
The ability to utilize the BIM model of LGS framing for clash detection with other trades
Colossal manufacturing time savings thanks to the CNC export of LGS panels and utilization of CNC rollformers for LSG panel production
Tools used
Autodesk Revit
Strucsoft MWF Advanced Metal
SCIA Engineer
Tekla Tedds
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