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.
Standard door handle size.
Although custom doors do cost more money.
The standard bore is 2 1 8.
If one wants to replace their locks on doors that have smaller diameter holes there are 2 options.
Standard door handle height.
Many older doors had bores that were been smaller.
Lock bore the diameter of the hole for the lock body.
Custom doors can be made to match any size door opening.
This is around waist height for the average adult.
Dummy handles are surface mounted and may be located anywhere on the door you choose but they re usually located to match the appearance of nearby operating locks.
Regardless of the size of the door the australian standard as 1428 1 design for access and mobility part 1.
However the standard door handle size also considers the convenience of using it.
There is no universal standard door dimension.
Also measure the door jamb to know whether or not your home is existing or new construction type of door.
Measure from the center of the door knob hole to the edge of the doorway to find the size of the door set.
The standard size for an exterior door is 80 inches 6 feet 8 inches by 36 inches 3 feet.
Check the sides of the door for a bevel before drilling.
Place a try square along the side of the door.
While the commercial door handle height is already 34 to 48 inch which standard you should install the knob and handle carefully if you choose to buy a slab door.
It is more important that your door handles be consistent than that they match the standard door handle height.
On average you can.
The standard size for an exterior door is 80 inches by 36 inches which is 6 ft 8 inches by 3 ft.
Measure your existing door knobs from the floor up.
In most cases the door set which is inside of the door and controls the door latch.
96 inches or 8 ft.
If the door has a 2 to 3 degree bevel on one side the doorknob must be placed on that side.
Some door manufacturers sell doors in 7ft 8ft heights and door widths from 24 inches to 42 inches.
The bevel allows for the edge of the door to clear the jamb when the door is operated.
This creates a more harmonious appearance.
If for some reason your existing interior door isn t a standard door size don t worry.
Require no door prep.
Most of the current locks require the standard 2 1 8 bore.