How to Build a Concrete Ramp (ADA Specs)
Max slope is 1:12 (1 inch rise for every 12 inches length). Must have handrails if rise > 6 inches.
How to Build a Concrete Ramp (ADA Specs): Complete Guide
Building an ADA-compliant concrete ramp requires specific slope and handrail requirements. Maximum slope is 1:12 (1 inch rise for every 12 inches length). Must have handrails if rise is greater than 6 inches. Understanding these requirements ensures legal, accessible ramps.
Maximum Slope: 1:12
Slope is critical:
- 1:12 ratio: 1 inch rise per 12 inches of length
- Maximum allowed: Cannot be steeper
- ADA requirement: Required for accessibility
- Safety: Ensures safe use
Calculating Slope
To calculate length needed:
- Multiply rise by 12: Total rise × 12 = minimum length
- Example: 24-inch rise = 288-inch (24-foot) minimum length
- Plan ahead: Ensure enough space
Handrail Requirements
Handrails are required when:
- Rise > 6 inches: If total rise exceeds 6 inches
- Required: Must have handrails on both sides
- Safety: Essential for safety
- ADA requirement: Legal requirement
Other ADA Requirements
- Width: Minimum 36 inches wide
- Landings: Required at top and bottom
- Surface: Must be slip-resistant
The Bottom Line
Build ADA-compliant ramps with maximum slope of 1:12 (1 inch rise per 12 inches length) and handrails if rise exceeds 6 inches. These are legal requirements for accessibility. Always verify current ADA requirements and local codes before construction.
Need an ADA-compliant ramp? Contact Local Concrete Contractor. We build ramps to ADA specifications for proper accessibility.
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