You can check this by measuring from the centre of the spindle to the centre of the key hole.
Standard size for exterior door handle.
If they are more than inch off the standard height you will want to match all of the pre existing door handle heights in your home.
Some door manufacturers sell doors in 7ft 8ft heights and door widths from 24 inches to 42 inches.
Standard door handle height.
Over the years front door handles for wooden doors have tended to keep to a standard lever to lock size.
The standard size for an exterior door is 80 inches 6 feet 8 inches by 36 inches 3 feet.
The standard door thickness is 1 inches.
It is more important that your door handles be consistent than that they match the standard door handle height.
Regardless of the size of the door the australian standard as 1428 1 design for access and mobility part 1.
Measure your existing door knobs from the floor up.
The standard size for an exterior door is 80 inches by 36 inches which is 6 ft 8 inches by 3 ft.
This is around waist height for the average adult.
This creates a more harmonious appearance.
96 inches or 8 ft.
Is now very common for newer homes and stock exterior doors are also commonly available in 30 and 32 inch widths.
This makes the changing of exterior door handles easy enough for most people to do.
In metric terms this size is 57mm.
Some door manufacturers carry stock doors in 7 foot and 8 foot heights and door widths from 24 inches to 42 inches.
Measure from the center of the door knob hole to the edge of the doorway to find the size of the door set.