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?
Latest spec sheet
Door Locks · 2026-09-25
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.
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.