Section symbol is used very popular in the AutoCAD drawing. So that you need to make it by dynamic block and save in your library to use it everywhen you neeed. I will help to create it with steps and video tutorial. In the addition, you can download free this symbol and use
Step 1: You draw the neccessary objects.
Step 2: Define some attribute for block that you intend to make. This step is very important that will prompt you when modify these blocks.
Step 3: Define block
Step 4: Create dynamic block.