$15 Iron door Low-poly 3D model by fabelar. Available on CGTrader with 1800 polys and 1000 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 26.2 MB), TEXTURES (Textures, filesize: 26.2 MB), FBX (Autodesk FBX, filesize: 1.16 MB), DXF (DXF, filesize: 26.2 MB), 3DS (3D Studio, filesize: 26.2 MB), MAX (Autodesk 3ds Max, filesize: 26.3 MB), WRL (VRML, filesize: 26.2 MB), DAE (Collada, filesize: 26.2 MB), ABC (Alembic, filesize: 26.2 MB), GLTF (glTF, filesize: 31.9 MB)