This is a stairs modeling by Fusion 360.The f3d, step and etc. files are supplied.This modeling may be necessary when you are bulding component-related.
F3D (Autodesk Fusion 360, filesize: 170 KB), OBJ (OBJ, filesize: 516 KB), FBX (Autodesk FBX, filesize: 318 KB), STP (STEP, filesize: 216 KB), SKP (Sketchup, filesize: 529 KB), SAT (3D ACIS, filesize: 168 KB), DWG (AutoCAD, filesize: 287 KB), STL (Stereolithography, filesize: 955 KB), 3MF (3D Manufacturing File, filesize: 252 KB), IGE (IGES, filesize: 427 KB), IAM (Autodesk Inventor, filesize: 176 KB), DXF (DXF, filesize: 896 KB)