GuidelineRecommended
Ramps over 6 inches rise must have handrails on both sides
HUD FHA Design Manual Chapter Two §2.8Description
Ramps with a rise greater than 6 inches or a horizontal projection greater than 72 inches must have handrails on both sides. Handrail height 34-38 inches above ramp surface; handrails must extend 12 inches beyond top + bottom of the ramp.
Why this exists
ANSI A117.1 handrail provision. The 12" extension allows the user to grasp the rail before stepping onto the ramp.
Measurements
| Property | Operator | Value | Unit | Note |
|---|---|---|---|---|
maxRiseNoHandrail | max | 6 | in | Maximum rise without handrails |
handrailHeightMin | min | 34 | in | Handrail height (min) |
handrailHeightMax | max | 38 | in | Handrail height (max) |
handrailExtension | min | 12 | in | Handrail extension at top + bottom |
Categories
AccessibilityLife safety
Applies to
- 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 Two §2.8
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
- Cathedral ceilings: gable-end wall stud must extend to roofline (no hinge at top plate) · HUD RSDG §5.6.2
- In high-wind zones, soffits need solid blocking at exterior walls · HUD RSDG §5.6.5
- Sill-plate anchor bolts: 1/2" diameter @ 6 ft on-center, max 12 inches from corners/splices · HUD RSDG §7.4.3
- Universal design features encouraged for residential accessibility under Section R320.3 · Virginia USBC 2021 Amendment 33 (IRC R320.3)
Last reviewed 2026-05-10.