I want to get rid of my tub and convert it into a shower with glass block and a block seat. How big does the area need to be in order for me to fit all that in there? My tub is a standard tub and I am not sure if I am able to do that.

Are you planning on tearing out the tub and having a custom mud pan built?

It all depends on how close the toilet is to the tub now. I would go with a retrofit shower floor from swanstone which you can order from Home Depot and glass doors if the toilet is next to the tub.

I was initially thinking retro pan to but not sure how you could create a glass block seat in one.