Standard Interior Door Backset

Most interior doors are prepped with a single boor hole.

Standard interior door backset.

Most modern doors have a 2 frac38 backset although exterior doors and some larger interior doors may have a 2 backset. Some door manufacturers carry stock doors in 7 foot and 8 foot heights and door widths from 24 inches to 42 inches. For operating clearance the hinge backset on the door is 1 16 less smaller than the hinge backset on the frame. A backset is the distance from the center of the cross bore to the edge of the door.

Through the edge of the door there is a 1 cross bore that extends from the edge of the door through the bore hole. When ordering a standard door set be sure to measure and specify the correct backset distance from the edge of the door to the center of the 2 frac18 bore. Sometimes it s easier to measure from the edge of the door to the highest point on the bore hole. Opening heights 3 0 through 4 11 15 16 centered in door height not frame.

The two standard backset measurements in north america are 2 3 8 inches and 2 3 4 inches. Standard backsets are either a 2 3 8 backset or 2 3 4 backset. To determine the correct backset measurement for your door you need to measure the distance from the edge of the door to the center of your cross bore. The method or measuring hinge backset varies between sdi and naamm hmma.

The bore hole is the large diameter hole where the door knob is mounted. Patio doors are constructed of glass with a frame. Deltana sdl980u5 classic round rosette tubular lock storm screen door latch set with 1 3 4 backset in antique brass 3 8 out of 5 stars 110 36 59 36. This cross bore is where the latch is installed.

However patio doors are routinely available in 6 foot 11 inch and 8 foot heights. The most common backset is 2 3 8 but 2 3 4 is also quite common usually used on exterior doors. If your doors are not pre drilled measure the stile width. Hinge backset is the dimension from the leading edge of the hinge to either the stop on the frame or to the stop face push side of the door.

The standard sized bore hole is 2 1 8 in diameter.