GuidelineRecommended
Toilet side grab-bar reinforcement: 36 inches from back wall, 33-36 inches above floor
HUD FHA Design Manual Chapter Six §6.4Description
Reinforcement for a future toilet side grab-bar shall be located so the grab-bar can be installed 33-36 inches above the floor, extending 36 inches from the back wall. Toilet centerline must be 16-18 inches from the side wall holding the bar.
Why this exists
ANSI A117.1 §604.5.1. The 16-18" toilet centerline + 36"-long side bar are the geometry that lets a seated user with limited mobility transfer from a wheelchair.
Measurements
| Property | Operator | Value | Unit | Note |
|---|---|---|---|---|
sideBarLength | min | 36 | in | Side grab-bar reinforcement length |
heightMin | min | 33 | in | Grab-bar height above floor (min) |
heightMax | max | 36 | in | Grab-bar height above floor (max) |
centerlineMin | min | 16 | in | Toilet centerline from side wall (min) |
centerlineMax | max | 18 | in | Toilet centerline from side wall (max) |
Categories
AccessibilityBathroom
Applies to
- Room types: bathroom, half_bath
- When:
- aspires to visitability / universal design
Source
HUD (US Department of Housing and Urban Development)no manifest entry
Fair Housing Act Design Manual (1998 revised)
Section: Chapter Six §6.4
Published 1998-08-01 · last verified 2026-05-10
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
- Universal-design wider doorways · HUD UD §3.2
- Universal design features encouraged for residential accessibility under Section R320.3 · Virginia USBC 2021 Amendment 33 (IRC R320.3)
- Covered multifamily dwellings: at least one building entrance on an accessible route · HUD FHA Design Manual Requirement 1 (Chapter One)
- Public and common use areas must be readily accessible to and usable by people with disabilities · HUD FHA Design Manual Requirement 2 (Chapter Two)
- All doors must provide a clear opening of at least 32 inches when open 90 degrees · HUD FHA Design Manual Requirement 3 (Chapter Three)
Last reviewed 2026-05-10.