Looking for Spiral Stairs with Stringer Treads Railing and Handrail? Get this 3D model from parametricfuture via CGTrader for $25.
STL (Stereolithography, filesize: 9.17 MB), OBJ (OBJ, filesize: 19.9 MB), OTHER (Other, filesize: 513 KB), 3DM (Rhinoceros 3D, filesize: 3.66 MB), 3DS (3D Studio, filesize: 3.69 MB), FBX (Autodesk FBX, filesize: 811 KB)