This may be the stupidest question you’ve heard:

Regarding your video about creating a shower pan so you can then tile it and the shower  – you laid down the tar paper and the mesh wire screen then stapled the screen to the subfloor. What if I am planning on doing this in my basement where the floor is my foundation/concrete? What do I do differently since I cannot fix the mesh to the floor? Do I skip that step?

Thanks!!

Amelia