$5 steel frame carport 06 3D model by ahammodullah. Available on CGTrader with 21114 polys and 21284 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 8.94 MB), BIP (KeyShot, filesize: 26.7 MB), MA (Autodesk Maya, filesize: 14.2 MB), FBX (Autodesk FBX, filesize: 1.22 MB), BLEND (Blender, filesize: 970 KB), SPP (Substance Painter, filesize: 30.1 MB)