need to measure the distance from the bottom of the door frame 5 to the placement of foot bracket 20 in the old method an incorrect measurement from the bottom of the door frame 5 to the foot bracket 20 will produce an incorrect installation of the door because no such measurement is necessary with this device and because of the uniform lengths of the extension members 10 this device will eliminate one area of possible mistake in installation additionally in order to ensure that the frame 5 is completely square relative to the supporting structure a side member 8 is installed using a similar foot bracket 20 which is placed and secured to the floor again the foot bracket 20 on the side is installed in a similar manner and has a similar slot into which a side extension member 8 is inserted a stop mechanism 15 is placed within this side foot bracket the side extension member 8 extends from the slot in the foot bracket 20 to an existing hinge hole in the door frame 5 itself the foot bracket is secured using a screw and the opposite end of the side member is secured to the door frame using a screw through the existing hinge hole in the door this.