1. What is a Wheelchair Ramp Slope Calculator?

Definition: This calculator determines the slope percentage of a wheelchair ramp based on its height and length.

Purpose: It helps ensure wheelchair ramps meet accessibility standards and are safe for users.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( S \) — Slope percentage (%)
• \( H \) — Height of ramp (feet)
• \( L \) — Length of ramp (feet)

Explanation: The height is divided by the length to get the slope ratio, then multiplied by 100 to convert to percentage.

3. Importance of Ramp Slope Calculation

Details: Proper slope calculation ensures ADA compliance (maximum 8.33% slope) and safe wheelchair access.

4. Using the Calculator

Tips: Enter the vertical height and horizontal length of the ramp in feet. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum allowable slope for wheelchair ramps?
A: ADA requires a maximum 1:12 slope (8.33% grade) for wheelchair ramps.

Q2: How does slope affect wheelchair use?
A: Steeper slopes require more effort to ascend and can be dangerous when descending.

Q3: What if my slope exceeds 8.33%?
A: You'll need to increase the ramp length or add resting platforms.

Q4: Does this include handrail requirements?
A: No, this only calculates slope. ADA also requires handrails for ramps steeper than 6%.

Q5: How do I measure height and length?
A: Height is vertical rise, length is horizontal run (not the ramp surface length).