Abstract: The brackets connecting the furnace roof support beams to the buckstays of an open hearth furnace sidewall are reversible to provide for vertical shifting of the furnace roof support structure. The support brackets comprise a pair of symmetrical bracket pieces each having two generally vertically aligned sidewall connection points, and a support beam connection point vertically offset from the centerpoint defined by the sidewall connection points, such that the elevation of the support beam connection point is shifted when the vertical orientation of the sidewall connection points is reversed. The elevation of the roof support structure is thereby easily shifted, and refractory blocks of differing longitudinal lengths may therefore readily be incorporated into the furnace roof structure.