Structural Frame & Truss Analysis Software RSTAB 9 | Interfaces

RSTAB - Structural Engineering Analysis & Design Software

Interfaces between programs are important for a successful project. Use the successful structural frame & truss analysis software RSTAB for your design of beam, frame, or truss structures consisting of steel, reinforced concrete, timber, aluminum, or other materials.

With RSTAB, you can easily and quickly define a structural model and then calculate the internal forces, deformations, and support reactions. There are design add-ons at your side that you can use to consider the material- and standard-specific requirements.

  • RSTAB 9 for Frames and Trusses

BIM-Oriented Planning

Structural Analysis Models to Download

Models to Download

Select numerous structural models to utilize them for training purposes or for your projects.

Really Great Software

"I take this opportunity to thank you and your team for a really great software. After so many years of utilizing your software, we still see every day what your product is able to do and we really enjoy the application!

We look forward to more years together!"

A major advantage of RSTAB 9 is the interconnectability of the program. The Dlubal program provides various interfaces to other software by default. This allows you to easily exchange model data with CAD programs, for example, in order to make your work process more efficient.


Webservice and API

Technology takes you further, also in your daily work with RFEM / RSTAB. The new API technology Webservice allows you to create your own desktop or web-based applications by controlling all objects included in RFEM 6 / RSTAB 9. Entire libraries and numerous functions are available to you. Thus, you can easily perform your own design checks, effective modeling of parametric structures, and optimization and automation processes using the programming languages Python and C#. Dlubal Software makes your work easier and more convenient. Check it out now!


Integration in Autodesk Revit

Do you enjoy working with Autodesk Revit and wish there was an interface to the Dlubal Software? Then your wish has already become a reality! The direct bidirectional interface in RFEM 6 / RSTAB 9 to Autodesk Revit makes it easy for you: A structure created in RFEM/RSTAB can be visualized in Revit and prepared for the design engineer. In the same way, it is possible to calculate and design a Revit model in RFEM/RSTAB. You can even easily align the subsequent modifications in both the Revit and the RFEM/RSTAB model. Does that sound like a dream? Then live it and read more at:


SAF Interface

Dlubal Software has also interfaces with open source software, such as SAF. This will make your work much easier. RFEM 6 and RSTAB 9 support the data exchange using the Structural Analysis Format (SAF). The structural analysis programs offer you both import and export. SAF is based on MS Excel. It is a file format intended to facilitate the exchange of structural analysis models between different software applications. We can assure you: It is definitely an asset to any structural engineer.


Autodesk-AutoCAD Interface

Use the interfaces for more efficient work. You can import your structures in the DXF format as lines from Autodesk AutoCAD into RFEM 6 / RSTAB 9.

Furthermore, you can export different objects (for example, cross-sections) from RFEM 6 / RSTAB 9 to separate layers in Autodesk AutoCAD.


Microsoft Excel

MS Excel is a classic when it comes to the further processing or preparation of table values. We have implemented a direct link to Microsoft Excel for you in RFEM 6 / RSTAB 9. Thus, you can export the tables of RFEM 6 / RSTAB 9 individually or all at once, directly into an Excel spreadsheet. Furthermore, you can transfer the Excel tables to RFEM 6 / RSTAB 9. We are always working to offer you even more options in RFEM / RSTAB.


DXF Format (*.dxf)

You are certainly already familiar with the DXF format. The DXF file format provides you with the most common data exchange formats available in the CAD area. DXF files can be imported as well as exported with minimum effort.


IFC Interface in RFEM 6 / RSTAB 9

Dlubal software has many different interfaces. One of them is the IFC (Industry Foundation Classes) interface. This is divided into several areas, called "Views". Furthermore, there are various versions of the IFC format. Take a closer look here. Version 4.0 is supported for both import and export. However, the older version 2x3 is only supported for import. Regardless of in which direction you exchange the data, you can process the StructuralAnalysisView as well as the ReferenceView (Coordination View).

When importing the ReferenceView, the individual IFC objects can be converted into RFEM-native elements. You can also use the conversion tables to adapt the cross-section and material descriptions. The export in the ReferenceView allows you to display the structure in IFC viewers and CAD programs. On the other hand, StructuralAnalysisView allows you to transfer the structural model including loading. As you can see, there are numerous options available to you.


Background Layers

To simplify your modeling, use background layers stored in the work window of RFEM 6 / RSTAB 9 for the input of graphical object. These layers are generated from an imported DXF file. Read more about this:


Export to SVG Format (Vector Graphics)

In RFEM 6 and RSTAB 9, you can export line graphics to the SVG format (vector graphics).

SVG stands for Scalable Vector Graphics and is an XML-based file format for displaying two-dimensional vector graphics. These vector graphics can be scaled without loss. It is possible to edit the SVG files using text editors, embed them on websites, and open them in the usual browsers.



  • Fast modeling thanks to sophisticated input technology
  • One program for all types of structures, from single-span girders to complex 3D beam structures
  • Fast calculation using the multiprocessor technology
  • Support of national and international standards
  • Quick generation of a professional-looking printout report
  • Automatic generation of wind loads using the integrated CFD wind simulation (RWIND required)
  • API via Webservice
  • Globally recognized program with over 100,000 users
  • Professional customer support provided by more than 20 support engineers


2,850.00 EUR

The prices apply to the use of the software in all countries.