Stationary wheelchair clear floor space: 30" × 48"
HUD FHA Design Manual Ch 5 §Section 4 reach geometryDescription
The ANSI A117.1 stationary-wheelchair clear floor space is 30" × 48". This is the design-time geometry for one wheelchair user without movement. Used to size: a) approach to controls/outlets, b) approach to fixtures, c) clear-floor zone in bathrooms / kitchens at activity centers. Forward approach = perpendicular to wall, side approach = parallel to wall.
Why this exists
This is the foundational dimension behind every other reach + maneuver clearance in the FHA + NKBA + ICC accessibility standards. Knowing 30" × 48" by heart is how an architect spots an accessible plan at sketch time.
Measurements
| Property | Operator | Value | Unit | Note |
|---|---|---|---|---|
width | min | 30 | in | Stationary wheelchair clear-floor width |
depth | min | 48 | in | Stationary wheelchair clear-floor depth |
Categories
Source
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 2026-05-14.