1. What is Ramp Slope?

Ramp slope is the ratio of vertical rise to horizontal run of a ramp. It's a critical measurement in construction, architecture, and accessibility design to ensure ramps are safe and meet regulatory requirements.

2. How Does the Calculator Work?

The calculator uses the slope formula:

Where:

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

Explanation: The calculator also converts the slope ratio to a percentage and angle in degrees for different applications.

3. Importance of Ramp Slope Calculation

Details: Proper ramp slope is essential for accessibility compliance (ADA requirements), safety, and functionality. Different applications have different maximum slope requirements.

4. Using the Calculator

Tips: Enter the vertical rise and horizontal run in feet. Both values must be positive numbers. The calculator will provide the slope ratio, percentage, and angle.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum slope for ADA compliant ramps?
A: The maximum slope for ADA compliant ramps is 1:12 (8.33% slope or about 4.76 degrees).

Q2: How do I convert slope ratio to percentage?
A: Multiply the slope ratio by 100. For example, a 1:12 slope equals 1/12 = 0.0833 × 100 = 8.33%.

Q3: What's the difference between slope ratio and slope angle?
A: Slope ratio expresses the relationship as a ratio (e.g., 1:12), while slope angle expresses it in degrees from horizontal.

Q4: When is a steeper slope acceptable?
A: Steeper slopes may be acceptable for short ramps in residential settings or for non-accessible routes, but always check local building codes.

Q5: How does slope affect wheelchair use?
A: Steeper slopes require more effort to navigate and may be impossible for some wheelchair users to traverse independently.