This is what is still measured today, with the tape measure hooked on the corner of the door at a height of up to 36 inches. While the height we have already determined should be 36 inches in the center line for standard dummy door handle, it is not the only consideration. The separation of the edge of the door, is crucial for the operation of the knob. This measurement varies, with most of the knobs produced at an industrial level but it is adjustable if there is any setback.
Well it is of 2 and 1/8 inches to 2 and 3/4 inches, which are the two most common backsets. The dummy door handle holes are usually 2 and 1/4 inches in diameter with the latest generation drill for the front is 1 inch in diameter. While the locks can be installed at any height along the edge of the door.
It can be said that they are normally placed with their center 6 inches above the center of the dummy door handle. This gives enough space for the locking mechanism to work without hitting the wrist in the control while remaining low enough to be easily attainable. The locks are normally installed with the same diameter used in the holes.Tag : dummy door handle