Simple non-animated stairs or small ladder if you prefere so, for small household jobs. Floor is not included with these files. Available in object format, 3ds format, and recommended the fbx format and native Cinema 4D format (r19).
OBJ (OBJ, filesize: 1 MB), C4D (Cinema 4D, filesize: 727 KB), 3DS (3D Studio, filesize: 376 KB), FBX (Autodesk FBX, filesize: 1.22 MB)