Proper slope on shower threshold.
Minimum slope shower floor.
So if we make the pre slope 3 4 thick at the drain it needs to be a total of 1 1 2 inch thick at all your walls.
Wheel chair entry requires a larger shower opening a minimum of 60 inches with a shower width of at least 30 inches.
This would be very much like a handicapped shower in its design a bit different but similar.
I am just trying to understand the code.
Remember that water will travel in the path of least resistance.
My contractor has just ripped out my shower floor because it was very uneven.
I have found several references for 1 4 in per 12 in run.
These stall should have no curb to allow the individual to roll into the.
We could find no reference to recommended slopes when trench drains are used in a floor.
So mark a line 1 1 2 from the floor all the way around the wall studs.
Land on the sloped curb and shed towards the drain and not onto your bathroom floor.
I asked for the minimum slope and it looks like it is sloped 1 and 1 4 inch for 22 inches from left to right.
It can be done but several steps must be taken to prevent water from going all the way to the sub flooring but to answer your question and i ve been doing it for 20 years the slope is a minimum of 1 4 per lineal foot i slope it a bit more depending on the shower size and how far it is to the drain.
Your finished floor after your liner and top mud bed are installed needs to be 1 to 1 1 4 thick at the drain.