I haven’t yet installed this glass but I am excited to do so.  Though you would normally do this directly against tile, I am going to have it sitting upon a shower pan that is sturdy and will be reinforced to handle the weight.  This bathroom is in a very old home made of a granite exterior so I’m working with the small space I have.  The large glass allows for no doors or curtains and doesn’t impede the air and light flow making the space feel and look larger.