https://i.ytimg.com/vi/sDLWqZwD2sE/hqdefault.jpg In this video, You will learn how to make round stairs in blender. Blender version 2.78c is being used while making this video. We will cover basics of 1. subdivision surface modifier 2. screw modifier 3. array modifier 4. applying transforms Thanks for watching, Please subscribe, and leave a comment. source