CodeMandatory
Toilet centerline + front clearance
IRC R307.1Description
Toilets must have ≥15" from centerline to any wall, fixture, or partition AND ≥21" of clear floor space in front.
Why this exists
Defines the minimum space that lets an adult sit, stand, and turn at the toilet.
Measurements
| Property | Operator | Value | Unit | Note |
|---|---|---|---|---|
minCenterlineToSide | min | 15 | in | |
minFrontClearance | min | 21 | in |
Categories
BathroomAccessibility
Applies to
- Room types: bathroom, half_bath
Source
ICCno manifest entry
International Residential Code (2024)
Section: R307.1
Published 2024-01-01 · last verified 2026-05-09
Solver enforcement
Browsable only — the solver does not currently enforce this directive (no spec-level data to check against). This entry exists so the architect personas can cite it in conversation and the user can read what the rule says.
Related directives
- Bathroom ventilation · IRC R303.3
- Shower compartment floor · IRC R307.2
- Safety glazing near tubs and showers · IRC R308.4.5
- Stair handrails · IRC R311.7.8
- Hallway minimum width · CM-HALLWAY-WIDTH-01
Last reviewed 2026-05-09.