Each of the hinges 30, 30 is positioned at upper and lower positions of the hinge-side vertical member 20 correspondingly, wherein each position is symmetrical relative to the horizontal plane which divides the hinge-side vertical member 20 in halves. A latch hole 52 of the latch receiver 50 is provided at a position of the latch-side vertical member 25 where the member 25 is divided in halves. A latch 40 is positioned higher than a door handle 90 capable of reversing. Each hinge is attached through one touch operation in order for use in a double hinged door system.