visit a shower door company before designing your bathroom
I cannot emphasize enough on going to a showroom with full displays before designing your new bathroom. a frameless shower enclosure is one of the most important points in the bathroom remodel.
If you would like this type of shower door, Meaning a swinging door instead of sliding doors. A swinging door for the most part you will not need frames. But keep in mind you need the space for a swinging door to open. Also having a near by toilet or sink can be in the way. In addition, sometimes the water wall is opposite the wall where you have access to get into the shower. But this can be uncomfortable to turn on the water before getting in. Personally I like to turn on the water make certain it is warm before jumping...lol. But if you have to lean into the shower you will get that cold water on you. So make sure when the bathroom is gutted you have the contractor move only the levers to the wall where the door will be installed, keeping the shower head opposite of the door. So there is a lot to keep in mind when designing your new bathroom.