5x6 m 15 degree carport 3D model is available on CGTrader for $11. Original author: model3d-pl.
OBJ (OBJ, filesize: 2.43 MB), 3DM (Rhinoceros 3D, filesize: 1.41 MB), FBX (Autodesk FBX, filesize: 3.91 MB), RFA (Autodesk Revit, filesize: 700 KB), SKP (Sketchup, filesize: 4.28 MB)