StandardRecommended
Toilet centerline + front (detailed)
NKBA Bath 5Description
Toilet centerline ≥18" from any side wall, fixture, or partition (NKBA recommended; code minimum is 15"). Front clearance ≥30" (recommended; code minimum 21").
Why this exists
NKBA recommendations exceed IRC code minimums for comfort and access.
Measurements
| Property | Operator | Value | Unit | Note |
|---|---|---|---|---|
sideClearanceMin | min | 18 | in | NKBA recommended |
frontClearanceMin | min | 30 | in | NKBA recommended |
Categories
Bathroom
Applies to
- Room types: bathroom, half_bath
Source
NKBAno manifest entry
Bathroom Planning Guidelines (2024)
Section: Guideline 5
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 entry doorway · NKBA Bath 1
- Doorway swing clearance · NKBA Bath 2
- Clear floor space at fixtures · NKBA Bath 3
- Fixture clear-space overlap · NKBA Bath 4
- Toilet compartment dimensions · NKBA Bath 6
Last reviewed 2026-05-09.