If you don't have ZWCAD then get its 30-day free trial here https://zwsoft.co/download
In this video, I will show you the step-by-step method of making the stair plan in ZWCAD which is a great alternative to AutoCAD.
You can follow this tutorial using ZWCAD as well as AutoCAD.
Here are the topics covered in this video:
00:00 Introduction
01:14 Understanding Measurements
03:08 Making Plan view
08:46 Making sectional elevation
Download the AutoCAD practice drawing eBook with the stair plan here https://www.thesourcecad.com/autocad-practice-drawings-with-pdf-ebook/