Our bath to shower conversion will be 30-32" x 66" as well. My question is concerning where to have my ceiling mounted rain shower head (considering 12" Rohl fixture since ceiling mounted and afraid will look out of proportion if go smaller.)

I would like to have a half wall approximately 45" tall (finished with granite on top) and 37" in length. The pony wall will have clear glass. Walk in area 29" (no door) with curb and granite sill. Drain to be centered. Shower controls will be relocated to doorless entry.

I would also like a shampoo shelf/shaving ledge approximately 4 to 6" in depth (also with topped with granite). The height approximately 18 - 20" so hidden by pony wall. I know will get wet. But that's okay with me.

With all this to consider does one center the shower head to the half wall/glass. Will this be feasible without creating problems with splash since no door? Am I just asking for trouble with my shelf/ledge? Should I reconsider 12 inch shower head? Head spinning with decisions!

Unable to paste photo of shelf/ledge but here's where found on Houzz.

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