Door Hardware Reference

Identify it. Measure it. Match it.

Start with the job in front of you: identify an unknown part, measure a replacement, or match hardware by function and finish.

Start with the job

What are you trying to do?

Identify a partUse shape, mounting, movement, and door location to narrow the hardware family. Measure a replacementRecord the dimensions that determine fit before removing or ordering anything. Match finish & functionTranslate common lock functions and finish codes into plain language.

Latest spec sheet Door Measurements · 2026-09-29

Standard Door Knob Height: Measure to the Center

Measure knob height from the finished floor to the lock center. Use 36 inches for a new basic layout, but match the strike on replacement doors.

Spec

Filed 2026-09-29

Revised —

Class Door Measurements

Length 595 words

Code & safety

Fire doors, egress hardware, accessibility clearances, and electrified openings can be code-controlled systems. Confirm the listing, manufacturer instructions, and local requirements before altering them.

Materials index 16 line items · newest first

Line	Item	Compares	Class	Filed
01	Standard Door Knob Height: Measure to the Center Measure knob height from the finished floor to the lock center. Use 36 inches for a new basic layout, but match the strike on replacement doors.	—	Door Measurements	2026-09-29
02	Overhead Door Closer: Identify, Measure and Replace It Identify a surface or concealed overhead closer, measure its preparation, and match its power, arm, handing and safety requirements.	—	Door Hardware	2026-09-28
03	Offset Door Hinges: Types, Measurements and Selection Distinguish swing-clear, wide-throw and offset-pivot hinges, then measure the opening, door and existing preparation before ordering.	—	Door Hardware	2026-09-27
04	Offset Hinges: Types, Measurements and Selection Identify swing-clear, wide-throw and offset-pivot hinges, measure the clear opening and existing prep, and verify door compatibility before ordering.	—	Door Hardware	2026-09-26
05	Cylinder Door Locks: Identify and Measure Before Replacing Identify a cylindrical lockset or removable cylinder, then match its bore, backset, door thickness, function and cylinder format.	—	Door Locks	2026-09-25
06	Spring-Loaded Door Hinges: How to Match and Adjust Them Match spring-loaded hinges by size, screw pattern and door capacity, then adjust tension safely and check fire-door or accessibility requirements.	—	Door Hardware	2026-09-24
07	Door Hinge Placement: New vs Replacement Use customary spacing only to start a new basic layout; for a replacement slab, copy each mortise from one clearly named reference point.	—	Door Measurements	2026-09-19
08	Single-Stair Apartment Self-Closing Door Requirements See when a single-stair apartment door must self-close, why the safety data depend on working closure, and how to verify the opening and local code.	—	Door Hardware	2026-08-31
09	Does Schlage Sense Pro Fit Your Door? 10 Checks Measure door thickness, bores, backset, strike, and clearance, then check whether Sense Pro’s keyless, Apple-first access suits your household.	—	Door Measurements	2026-08-27
10	Nest x Yale Replacement: Will Matter Fit the Same Door? Compare bore, backset, door thickness, strike alignment, Google Home support, and Nest Connect changes before replacing the lock on the same door.	—	Door Measurements	2026-08-27
11	Will My Level Lock Still Work? Local vs. Cloud Features Check which Level Lock features rely on local hardware, Apple Home, Matter, Bluetooth, or Level’s cloud, plus the backups to configure before an outage.	—	Door Locks	2026-08-27
12	What Must Match for a Schlage Lock Cylinder Replacement? A cylinder that accepts an SC1-style or Schlage C-keyway key may still have the wrong body, housing height, length, tailpiece or retaining method.	—	Door Locks	2026-08-09
13	How to Measure Door Hinges for a Drop-In Replacement Open a butt hinge flat. Measure height along the pin and width across both leaves, then match the corner radius.	—	Door Hinges	2026-08-08
14	Find the Standard Door Width for Each Type of Door A 36-inch slab, a 36-inch complete unit, a 36-inch rough opening, and 36 inches of usable passage are four different things.	—	Door Measurements	2026-08-07
15	Door Kick Plate Alternatives Match the Damage Use a clear panel for claws on the door face, an edge guard for localized wear, a pet barrier to prevent contact or a taller plate for cart impacts.	—	Door Protection	2026-08-06
16	What Is a Mortise Lock Set? Retrofitting one into a bored door means filling and recutting, so it's usually a door-replacement decision rather than a hardware swap.	—	Door Locks	2026-08-06

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