General requirements for access recommends that door handles of all types should be installed at a height not less than 900mm and not more than 1100mm above the plane of the finished floor.
Interior door handle height.
The international building code has established doorknob height between 34 and 48 inches above a finished floor.
Exceptions to the rule include doors that provide egress into swimming pools or other water features.
The bottom surface of doors and gates on the push side must be smooth to a height of at least 10.
Most doors for home installation are 80 inches tall and door handles are generally placed on the door three feet from the floor.
All handles pulls latches locks and other operable parts of the door should measure between 34 inches and 48 inches above the floor.
The height of the door handle must be between a minimum of 34 and a maximum of 48.
As it turned out there is no certain standard for height at which the handles should be attached to interior doors.
This facilitates access since mobility aids including wheelchair footrests are sometimes used to push or prop open doors.
Simply they must be installed in such a way that at the time of opening or closing the interior door there would be no inconvenience.
Personally i think it looks weird.
Door hardware ada compliant locks exit devices handles pulls latches and other operable parts on doors shall comply operable parts of such hardware shall be 34 inches minimum and 48 inches maximum above the finish floor or ground.
The other is 1965mm high with the handle at 1015mm from door and floor.
One door is 1980mm high with the centre of the handle at 1040mm from the bottom of the door and 1060mm from the floor when the door is shut.
The australian standard as 1428 1 design for access and mobility part 1.
Fortunately the standards for ada door handle height are not much different than traditional recommendations.
Installers typically drill the hole centered 36 inches above the floor if not specifically instructed to do so differently.