Measure and cut the header rail. Pull the shower door closed and lengthen your tape measure from just one facet to one other. Mark the scale to the body header and make use of your hacksaw to chop it to measurement. Clean down the raw edge using a metal file.[13] https://glass-shower-door-install27935.national-wiki.com/1218057/not_known_factual_statements_about_shower_door_installation_in_needham_ma