We have compiled this page to help you better understand some of the common terminology associated with interior door hardware.

Interior Door Hardware: Function

	Privacy / Bed / Bath A door knob or lever that locks only from the inside with a thumb lock (no key). Emergency release on other side. (TIP:Use this type of product for your Bathroom, Bedroom or other doors that require locking from one side.)
	Passage / Hall / Closet Designed for doors that do not need to lock. This type of Door Knob/Lever is most commonly used in areas of the house that do not require locking from either side.
	One sided Keyed Door Knob or Lever Set A knob or lever that is locked with a key on one side and a twist type latch on the reverse side for maximum privacy. Please note this style lock set does not allow for emergency unlocking without a key.
	Single Dummy This inoperable door lever or knob is on one side of the door. Typically used on closet doors or any other door that does not require a latch to hold door closed and is only opened from one side. (knob / Lever do not rotate)
	Full Dummy These are inoperable door knobs or levers sets for both sides of a single door for doors that are are pre-drilled with a standard 2 1/8" diameter hole. Typically used on doors that require no latch to hold door in place and is opened from both inside and outside of the door. (knobs / Levers do not rotate)

Interior Door Hardware Backset

Backset The distance from the edge of the door to the center of the bore hole is called the "Backset". Most new pre drilled doors come with a standard 2 3/8" backset.  (TIP: if not sure choose 2 3/8" backset 9 out of 10 times you should be fine)

Door Hardware: Handing ( Door Levers Only)

when selecting Door Levers it is critical to be able to designate if your door sw2ings to the left or right so that the levers point in the correct direction. in some rare cases door levers are actually reversible but more often than not you typically have to specify the door handing.