Evaluate and cut the header rail. Pull the shower door closed and lengthen your tape measure from just one facet to one other. Mark the size on the frame header and make use of your hacksaw to chop it to sizing. Sleek down the Uncooked edge employing a metallic file.[thirteen] https://www.deluxeshowerdoors.com/services/glass-shower-door-installation-in-needham-ma-deluxe-shower-doors/