Our CAD blocks are available in DWG format, a propriety binary file format used by AutoCAD, that is owned by Autodesk, and is used for saving 2D and 3D design data and metadata. Apart from AutoCAD, they can be loaded in multiple other Computer-Aided-Design programs like Revit, Sketchup, TrueCAD, BricsCAD, LibreCAD, TurboCAD, NanoCAD, and many more.
Before you download and use our designs make sure to check our license. The key points are that you are granted permission to use our CAD blocks in your projects, but you can't host them on other sites, make them available for download anywhere, or distribute them by any other means. You are of course encouraged to share them by linking back to this site :)