This video will give you step-by-step instructions on how to easily install the C.R. Laurence DRS Door Rail System for all-glass entrances. The DRS Door Rail System features our patented Wedge-Lock® glass securing system. Wedge-Lock works by applying pressure evenly along both sides of the glass producing exceptional clamping force that holds door glass securely in place. The DRS Door Rail System also features our Kwik-Adjust™ technology, which allows door glass adjustment up to 3/16" in either direction. This compensates for vertical gaps between the edge of the door glass and the adjacent sidelite. DRS Door Rails have the fastest installation time of any door rail in the market. DRS Door Rails come completely fabricated and can be installed right out of the box. Door rail assemblies can be ready for installation in less than 10 minutes. DRS Door Rails offer the shortest lead time available. CRL provides same-day shipping on our most popular door rails, while custom sizes and finishes can be shipped in as little as 3 days.