$15 Carved Stair 01 Black Low-poly 3D model by shabnam3dart. Available on CGTrader with 1058011 polys and 1127326 vertices. Geometry: Polygon mesh. Check it out on CGHub.
MAX (Autodesk 3ds Max, filesize: 103 MB), OBJ (OBJ, filesize: 110 MB), FBX (Autodesk FBX, filesize: 59.7 MB), STL (Stereolithography, filesize: 167 MB)