Convert DWG to DES

Understanding DWG and DES file formats

DWG is a proprietary binary file format used for storing two and three-dimensional design data and metadata. It is the native format for several CAD packages including AutoCAD. DES files, in the context of CAD, are typically associated with InRoads (Bentley Systems), where they store design data for civil engineering projects such as road alignments and profiles.

Why convert DWG to DES?

Converting a DWG file to a DES file is often necessary when transferring design data from AutoCAD to Bentley InRoads for further civil engineering analysis or construction planning. This ensures compatibility and preserves important design elements for infrastructure projects.

How to convert DWG to DES

There is no direct one-step converter from DWG to DES, as these formats serve different software ecosystems. The typical workflow involves exporting data from AutoCAD and then importing it into Bentley InRoads:

1. Open your DWG file in AutoCAD.
2. Export the relevant design data to a format supported by InRoads, such as LandXML or DXF (File → Export → Other Formats).
3. Open Bentley InRoads.
4. Import the exported file (File → Import → Geometry or File → Import → LandXML).
5. Save or export the project as a DES file (File → Save As or File → Export → InRoads Design File (*.des)).

Best software for DWG to DES conversion

• AutoCAD – for preparing and exporting DWG data.
• Bentley InRoads – for importing and saving as DES files.

There are no reliable online converters for this process due to the complexity and proprietary nature of the DES format. Using the native software ensures data integrity and compatibility.

Tips for successful conversion

• Ensure all necessary design elements are included in the export from AutoCAD.
• Check for compatibility between software versions.
• Validate the imported data in InRoads before finalizing the DES file.