A building strut is formed as a cylinder having a plurality of contiguous sidewalls. Opposing terminal ends of the sidewalls define the ends of the cylinder. One or more of the sidewall ends are formed as a coiled spiral. These spirals may be formed within one of the ends of the cylinder or lateral to the cylinder's end and thus provide extreme strength to the end of the cylinder. The ends of the sidewalls that are not coiled may terminate adjacent to the coiled sidewall or may extend axially beyond it, and they may be separated to form independent ears, or they may maintain their mutual integrity. If the ears are separate, they may be bent outwardly lateral to the cylinder, or at an angle to it, to facilitate joining to other structural members.