I install Tru-Frameless 3/8 & 1/2 heavy glass showers (I don't frame my showers with "U" channel). I also install 1/4 & 3/8 Semi-Frameless glass showers. I don't use pre-made showers, I order showers cut to fit. Pre-made showers only give you a couple of different heights and are made square. I can install any height and if a wall is a 1/4 inch out of plumb, for example, I'll order it 1/4 inch out of plumb. I can even pattern cut the glass if needed. Most of my work are in custom homes and some tract homes where the owner has replaced the fiber glass shower with tile or stone. I also install mirrors, cabinet glass, shelves and table tops.