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Architectural Hardware Installation Guide

Views:12     Author:Site Editor     Publish Time: 2017-09-22      Origin:Site

Recommended hardware locations for hollow metal doors and frames


These standards are recommended by the Hollow Metal Manufacturers Association as representing the long accepted usual 

preferences of both architects and users under normal conditions of use. Under some circumstances these standard locations

are inadvisable for certain items based on accessibility codes. For example, a lower position for the deadlock is possible, when

intended usage by small children or handicapped persons necessitates require positioning the user handled items in other than

these recommended standard locations.


Hardware location and floor conditions


As shown on the drawing, all hardware items except the upper and intermediate hinges are located by fixed dimensions from the

floor to the centerline of the item, making the locations of all user-handled items at the same lever for all door heights. The floor is

defined as top of the concrete or structural slab. Refer to “Defining Undercuts” when determining hardware locations based on 

special floor conditions.


BUTT HINGE


The three hinges shown on the drawing are recommended for doors over 5 ft. 0 in. (1524mm ) and including 7 ft. 6 in. (2286mm )

in height. For doors of greater heights, where four or more hinges are used, the top and bottom hinges are located as shown,

with the intermediate hinges being equally spaced between them. The hinge backset ( the dimension from the stop face, or narrow

side, to the edge of the hinge cutout ) is 1/4 in. ( 6.4mm ).


LOCKSET

Regardless of the type of lock or latch used, the centerline of the lever or knob is located at the 38 inch. (965mm ) from the floor, for the convenience of the user. This will result in some variation in the strike location, depending on the type of lock used.


EXIT DEVICE

Locations may vary depending on hardware manufacturers’ recommended locations or as required by code.


AUXILLIARY DEADLOCK AND LATCH


The recommended location for the deadlock is 46 in. (1168mm ) to centerline positioning it so as to avoid interference with through bolts and preparations for other hardware. ADA requires that the centerline of operating element of cylinder be on more than 48 in. ( 1219mm ) above floor.


PUSH-PULL HARDWARE

The recommended location for the center of the grip on a door pull or on a push plate, and the centerline of a push/pull bar is

46 in. ( 1168mm ).


ROLLER LATCH


The recommended location is 46 in. (1168mm ) to centerline of latch. Roller latches are generally used with dummy knobs or with

push/pulls.


HOSPITAL LATCH

The recommended location is 45 in. (1143mm ) to centerline of latch. 


DOOR CONTROL DEVICES ( CLOSERS, HOLDERS, STOPS, OPERATORS )

Locations may vary depending on hardware manufacturers’ recommended locations or as required by code.



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