Extruded Saddle Is Reversible to Match 1/4" and 3/4" Door Clearances Dry Glaze Push-In Top Load Glazing Gasket for 5/8" or 3/4" (16 or 19 mm) Glass Many Finishes to Match CRL Door Rails The square profile of this CRL Sidelite Rail matches perfectly with our Ten Inch (254 millimeter) Square Style Wedge Lock Door Rails . It is available in many finishes to match heights to both floor mounted and 1/2 inch (13 millimeters) threshold doors using our Reversible Saddle. Use the Sidelite Rails alone for your upper rails, and with our Aluminum Neoprene Setting Blocks , lifting the glass into the upper rail and lowering into the bottom rail. This will give you a 9/16 inch (14 millimeters) glass retention in both the top and bottom channels. Complete the job by installing the Roll-In EPDM Gaskets and matching finish End Caps .