$5 mezzanine floor system 3D model by ahammodullah. Available on CGTrader with 20514 polys and 20576 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 3.52 MB), MA (Autodesk Maya, filesize: 4.91 MB), BIP (KeyShot, filesize: 31.6 MB), BLEND (Blender, filesize: 959 KB), FBX (Autodesk FBX, filesize: 1.11 MB), SPP (Substance Painter, filesize: 18.9 MB)