Door Entry Hardware Types | Picking the Right Lock for Every Door

Walk through any hardware store and the sheer variety of door entry hardware types can feel overwhelming. The good news: choosing correctly comes down to just three things — where the door is, what it needs to do, and whether the hardware physically fits. Here is how to match each type to the right door without wasting time or money.

The Five Door Entry Hardware Types by Function

Every piece of residential or light-commercial door hardware serves one of five functions. Picking the wrong one is the most common mistake.

• Entry hardware — for exterior doors, designed for security. Includes keyed knobs, levers, or handlesets. Often paired with a deadbolt.
• Privacy hardware — locks from the inside only, usually with a push-button or turn-knob. Used on bathrooms and bedrooms.
• Passage hardware — no lock at all. A simple latch that opens with a twist. Used on closets, hallways, and other interior doors where privacy does not matter.
• Dummy hardware — non-latching, non-functional pulls. Used on inactive leaves of double doors or as a decorative pull on an interior door that never closes.
• Handlesets — a combined handle and deadbolt assembly common on front doors. Available as active, dummy, single-cylinder, double-cylinder, or electronic.

Mechanical vs. Electronic: How They Work

The internal mechanism determines how the lock interacts with the door. The most common mechanical types include tubular deadbolts and latches, cylindrical locksets, mortise locks, interconnected units, and standalone deadbolts. Mortise locks sit inside a rectangular metal case mortised into the door edge and require solid wood or wood-core doors for proper support — one buying guide warns against installing them in hollow-core doors because the box needs solid anchoring to hold up. Electronic and electrified hardware, by contrast, uses power to control locking and unlocking and comes in two main categories: standalone locks and networked systems that communicate with a hub or keypad. Both are common on smart-home setups, though the basic function — entry, privacy, passage — still applies.

What to Check Before Buying Any Door Hardware

Hardware that does not physically fit the door is useless. Verify these five specs before you buy, and compare our top picks for entry door hardware once you know your door’s measurements.

For replacement jobs, the widely recommended workflow has four steps: hang the door correctly, secure it with the right hardware, control it with the correct function, and protect it against forced entry. Start by measuring door thickness first — then check bore-hole size, backset, and latch style to avoid returns.

Which Type Goes on Which Door

Exterior doors need entry hardware, typically a keyed knob or lever plus a deadbolt, or a complete handleset. Pick ANSI Grade 1 or Grade 2 and choose hardware that resists picking, bumping, prying, and drilling. Interior bathrooms and bedrooms get privacy hardware with an inside lock; passage hardware goes on closets and hallways. Dummy hardware is purely decorative and belongs on double-door inactive panels or as a simple pull.