Unistrut channel / strut. Types P3300 and P1000. A free AutoCAD DWG file download.
These simple details will be useful in any DWG compatible CAD software package. While we have created these drawings in AutoCAD, they are compatible for use in other 2D software. For example: BricsCAD, Chief Architect, DesignCAD 3D Max, DraftSight, LibreCAD, Microstation PowerDraft, nanoCAD, ProgeCAD, Sketchup, Solidworks, TurboCAD, Vectorworks, GstarCAD, IntelliCAD and ZWCAD,