"Water splash" depends on the design of the shower, shower head model and more importantly on the person taking a shower! Design the glass (or curtain) coverage based on the messiest person who will be using the shower.

If you are going to use glass, get starphire or low iron glass, which has less green tint than regular glass.

I cant quite tell from your photo, but is the tub in already? Is it or will it be a drop in tub ?Might be an issue with the shower if it is.

Yes, it is a drop-in tub with shower. Wall tile on face of tub. What is the concern about this shower/tub combo?

Can you show us a picture of your drop in? what is it dropping onto?

The tub is in the photo - same tiling as wall. (Tub has dropcloth and paint cans in it right now.) Pic taken from above so looks wider than it is.

There IS an inegrated tile flange around 3 sides of tub

Who designed and built this? That is not how any of that is done. The tiling flange of the tub goes under the waterproofed walls, with the tub directly against the alcove walls. That is so that water splash flows down the walls, and is directed into the tub. Not flowing down and sitting on the deck, unable to get into the tub. It ends up on the floor then. You cannot build a deck and expect any of that to work at all correctly.

A drop in tub with a shower is a giant NO. Can’t do that.

Thank you. That is how it is done.

Then it has to be redone the right way. It’s cheaper and easier to redo it properly now, than after the 10’s of thousands in moisture damage occurs.

You are saying 3 different contradictory things at once. That don’t jive together. Post pictures of how this was built. All the in process pics, from the beginning.

@mamccabe1234 - first, I just want to make sure that you know that everyone is just trying to help you with their comments. Too many people have new shower or tub/shower surrounds that are not constructed correctly (more often stand alone showers - especially the shower pan - but there have been many times where the water proofing on the walls wasn't correctly done). Everyone's intentions are coming from the right place - they just don't want you to have a contractor who incorrectly constructs your tub + surround which causes water intrusion = water damage in a few years.

Why don't you show a photo of the tub system that is being used here? It's unusual for the deck (built around a drop-in tub) to have tiling flanges around the sides that are under the tiles on the wall. Plus, there is a question about the water that will stay on the deck.

If you show what's being used, it will eliminate the questions re: (i) whether a drop-in tub can be modified by the manufacturer in order be used in an alcove, and (ii) water intrusion by standing water between the edge of the drop-in tub and the tiled walls that are being brought up in the above comments.

I seem to remember a post on Houzz where this issue was discussed - and the OP posted a drop in tub that had optional tile flanges that could be added to the three sides in order to have the wall tile installed in front of the tile flange + land just above the tub deck (1/8" I think). It eliminated the deck space between the edge of the drop-in tub and the tiled wall = no place for water to get trapped.

If there are tile flanges - but they don't eliminate the part of the deck between the tub and the wall, the standing water issue remains. For example, when I had a drop in tub, any water that was splashed by the kids when they were little would have to be wiped up with a towel between the tiled wall and the edge around the drop-in tub - OR it would just sit there (I never let it sit there - so, I don't know how long it would take for there to be water intrusion between the edge of the drop-in tub and the tiled walls).

Drop-in tubs are typically used they way it was used in my primary bathroom:

Here is another example of a typical drop-in tub - it's used in a primary bath with a separate shower:

There are alcove tubs that can be used to look similar to a drop in tub - they have an apron that tile is added to:

Below is a type of alcove tub with a front apron that is made for tile to be installed:

Thank you for your thoughtful and thorough posts. I apologize for mis-speaking, and the photo apparently is not obvious. It is an alcove tub with a tiled front. (I am not a contractor and used the incorrect name.) All of the waterproofing was done correctly - just as a few posts have outlined. There is no more tub edge exposed than a normal tub/shower combo and no decking. We are just deciding glass. Thanks again.