4-Tier Aluminum Storage Shelving Unit 3D model is available on CGTrader for $24. Original author: AnyKolab. Specs: 351606 polys, 471689 verts.
SLDPRT (SolidWorks, filesize: 5.81 MB), OBJ (OBJ, filesize: 3.25 MB), FBX (Autodesk FBX, filesize: 1.78 MB), 3MF (3D Manufacturing File, filesize: 704 KB), STP (STEP, filesize: 1.13 MB), IGE (IGES, filesize: 1.41 MB), PDF (PDF, filesize: 3.53 MB), STL (Stereolithography, filesize: 10.1 MB)