I am in the process of installing a shower stall in my basement. The bathroom itself is located on a platform about 6 inches high and my plumber said that the shower stall needed to be on a platform 4" high (located on the bathroom platform). As a result the shower will be 10 inches off the ground. As a result the walls of the shower will touch the ceiling with no room for airflow - it will be like a steamroom in there. I know I can put a vent in there, but not too sure that would do the trick. Additionally, there is hardly any standing room (I and my two daughters are 6' tall). Aside from not putting a shower stall down there, does anyone have any other suggestions? Does the total platform height for the shower really need to be that high? Thanks.

The platform only needs to be high enough for the drain pipe to fit