After the DSR rails are in place, the rebar, post-tensioning tendons, conduit and other embedded items may be set in the form. Since the tops of the DSR rails are open, it is easy to place rebar or tendons between the studs. 1. Dayton Shear Resistance must be placed and remain vertical in the slab. 2. Equally space DSR rails when two or more are required on a single column face.