TL;DR
The deadbolt backset is the distance from the edge of a door to the center of the bore that holds the lock, manufactured in two North American standards: 2-3/8 inches, common on interior and budget doors, and 2-3/4 inches, typical of exterior slabs. Order a lock with the wrong measurement and the cylinder sits misaligned with the strike; most modern deadbolts ship with an adjustable latch that telescopes between the two.
What it means
The deadbolt backset is the distance from the edge of a door to the center of the bore that holds the lock, manufactured in two North American standards: 2-3/8 inches, common on interior and budget doors, and 2-3/4 inches, typical of exterior slabs. Order a lock with the wrong measurement and the cylinder sits misaligned with the strike; most modern deadbolts ship with an adjustable latch that telescopes between the two. It is the first dimension to check, along with door thickness, before buying a smart lock for an existing door.
Where it sits in the glossary
Deadbolt backset is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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