Guardrail formed from folded sheet metal

A guardrail formed of folded sheet metal comprising:

• a vertically disposed face panel having a top edge, a side edge, and a front surface,
• a top panel extending rearwardly from the top edge of the face panel, the top panel having a return edge opposite the top edge of the face panel,
• a return panel extending vertically from the return edge of the top panel and parallel with the face panel, the return panel having a back surface and a bottom edge,
• an end panel extending rearwardly from the side edge of the face panel, the end panel having the same width as the distance between the front surface of the face panel and back surface of the return panel, the end panel including an upwardly extending upper portion having an end surface,
• a bend relief disposed along the side edge of the face panel at a distance from the top edge thereof, the end panel bent rearwardly from the face panel along the side edge at the bend relief, the distance from the bottom edge of the return panel to the top panel substantially the same as the distance from the bend relief of the face panel to the top panel,
• the face, top and return panels having end edges, the end surface of the upper portion of the end panel flush with the end edges of the face, top and return panels, and
• the face, top and return panels forming a U-shaped channel, the upper portion of the end panel freely received in the channel.