I ripped 45deg in 2 studs. I’m adding a 45 deg to the corner to hopefully give it a little more room walking into the closet plus make it flow with the 45 deg angle of the shower wall.
Its probably overkill but I used the studs I tore out of the old walls. I Liquid nailed them with screws and toenailed them the existing wall.
More overkill, top and bottom. I doubled them both because I don’t know what I’m doing. 🙂 I overlapped the ends at different angles to add strength. I don’t have the corners permanently installed because the old shower is in the way.