1. What is the ADA Ramp Slope?

The ADA (Americans with Disabilities Act) ramp slope is a critical measurement for accessibility design, ensuring safe and comfortable access for people with mobility impairments. The standard ADA requirement is a maximum slope of 1:12.

2. How Does the Calculator Work?

The calculator uses the slope formula:

Where:

• \( Rise \) — Vertical height change (unitless)
• \( Run \) — Horizontal distance (unitless)

Explanation: The slope represents the ratio of vertical rise to horizontal run, with ADA standards requiring a maximum slope of 1:12 for accessibility ramps.

3. Importance of ADA Ramp Slope Calculation

Details: Proper slope calculation ensures compliance with accessibility standards, promotes safety for wheelchair users and individuals with mobility challenges, and meets legal requirements for public accommodations.

4. Using the Calculator

Tips: Enter the rise and run values (both unitless). The calculator will compute the slope ratio. Ensure values are positive and valid for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum ADA ramp slope?
A: The maximum slope for ADA compliant ramps is 1:12, meaning for every 1 unit of rise, there must be at least 12 units of run.

Q2: When is a steeper slope permitted?
A: Existing sites or space limitations may allow steeper slopes (up to 1:8 for short distances), but 1:12 is the standard for new construction.

Q3: Are there other ADA ramp requirements?
A: Yes, including minimum width, landing requirements, handrail specifications, and edge protection measures.

Q4: How does slope affect wheelchair users?
A: Steeper slopes require more effort to navigate and can be dangerous. The 1:12 standard ensures manageable incline for most wheelchair users.

Q5: Can this calculator be used for other slope calculations?
A: While designed for ADA compliance, the basic slope calculation can be applied to various ramp and incline scenarios.