Most glass for showers and saunas is tempered for safety. This means that even the slightest stress on the glass will cause the entire piece to shatter. In order to prevent a mishap like this, make sure to install any hardware to doors and windows only after the glass is installed to it’s final location! It is tempting to use an installed handle to lift a glass door into place, and this stress will almost surely destroy any tempered piece of glass. We had to replace this steam shower’s door because of this very mishap during installation. The replacement door was installed without issue because the handle was installed after the glass.