TL;DR
A closet flange is the ring-shaped fitting anchored to the subfloor that connects a toilet to the drain pipe and provides the slots for the bolts holding the bowl down. The wax or rubber seal compresses between bowl and flange, so the flange rim should sit flush with or up to a quarter inch above the finished floor.
What it means
A closet flange is the ring-shaped fitting anchored to the subfloor that connects a toilet to the drain pipe and provides the slots for the bolts holding the bowl down. The wax or rubber seal compresses between bowl and flange, so the flange rim should sit flush with or up to a quarter inch above the finished floor. A flange set too low after new flooring, or one cracked at the bolt slots, is the usual culprit behind a rocking toilet or water stains at its base.
Where it sits in the glossary
Closet flange 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
License: CC-BY-4.0 — quote freely with attribution to ProFix Editorial Team / ProFix Directory.