What are you doing to the walls for waterproofing? What are you doing to waterproofing the windows attachment points? You need to slow down and think this thru as I guarantee that you have no waterproofing on those walls (probably drywall) and you will end up with a mess in short order.

Blinds in a shower area never quite work. +1 to MWM comments on water proofing.

If you post a layout drawing and more pictures, maybe someone can recommend a better layout. Windows can be problematic in showers regarding waterproofing, safety, privacy, unless you can remove/replace with a new window positioned higher on the wall.

sorry I should have said that we haven't demo'd or anything yet. we are in planning phase now and trying to determine size etc. I'll post a drawing when I have a chance.

Forget about blinds. Go to a Lowe’s or Home Depot and buy a roll of window film and the applicator kit. There are various patterns, but a simple crinkle or frosted works best. You just cut to the size of the pane(s) and use the applicator spray fluid to apply. This is not an adhesive/stick-on system. The applicator fluid makes it easy to slide and adjust into place to line up perfectly on the window pane. Just measure carefully, and use a piece of paper as a template. If you don’t cut it right the first time, there is plenty left on the roll to try again. Depending on the height of the window, and if first or second floor, and number of panes, you may just want to do the lower panes. This looks like it is actual frosted glass, does NOT look cheap, and isn’t noticeable from the outside. Much better and less expensive solution! That said, you still need to be careful about waterproofing, and tiling around the sill of the window.

The other question, if using window film, is how old is the window? If a good quality, newer window, you should be OK. If an old wood window, not so good!

Why would you want that window inside your shower anyway? No matter what you do, your naked outline shadow will still be visible at the front of your house. Can’t you just get rid of the window? Or put the shower somewhere else?

And here is a picture of our (2nd floor) bathroom window inside a tub/shower combo. It is at the side end away from the shower head, and you may want to consider changing where to put the shower head plumbing. If the condition of the window may be an issue, there are waterproof material pull down blinds also available. If this is the only window, and I expect it is? And you are putting in glass doors on the shower, you could even use both the window film and a pull down. Use the pull down while in the shower and leave it open when the shower is not in use. The window film will give you plenty of light in the bathroom while still maintaining privacy.

Also is the existing window tempered? Code mandates tempered glass within a certain distance from a shower or tub.