Rail, stile, wall jamb, mullion and sidelight rail assemblies for framing doors and wall partitions are presented. The rail assembly includes a rail body and a spring action clamping member. The rail assembly features geometry that utilizes wedging action to convert axial force exerted by clamp screws into a perpendicular clamping force against faces of the panel to be secured. The stile, mullion, wall jamb and sidelight rail assemblies present additional means for securing and framing a panel. The framing assemblies herein presented are particularly well-suited for use with insulated glass panels, i.e. glass panels constructed from two panes of glass which are separated by spacers.