Abstract: A building member forming apparatus is comprised of standardized metric dimensioned panels including plywood paneling, outer horizontal support beams, vertical support beams, and inner horizontal support beams. A conversion corner bracket has a first leg and a second leg joined to form a right angle, a V-shaped indented outer corner, and a rounded inside corner opposite the V-shaped indented corner. The conversion corner bracket is attached to the panels by securing members which secure the conversion corner bracket to the vertical support beam of the panels. The conversion corner allows the apparatus to convert standardized dimensioned panels for use with either metric or U.S. customary unit-based construction structures.