Measure and Slice the header rail. Pull the shower door closed and extend your tape measure from a single aspect to the opposite. Mark the scale over the body header and make use of your hacksaw to chop it to dimensions. Clean down the Uncooked edge utilizing a steel file.[13] https://www.deluxeshowerdoors.com/services/glass-shower-door-installation-in-needham-ma-deluxe-shower-doors/