1. What is Ramp Gradient?

Ramp gradient represents the steepness of a slope expressed as a percentage. It indicates how much a ramp rises vertically for every unit of horizontal distance, making it essential for accessibility compliance and construction planning.

2. How Does the Calculator Work?

The calculator uses the gradient formula:

Where:

• \( Rise \) — Vertical height difference (meters)
• \( Run \) — Horizontal length (meters)
• \( Gradient \) — Slope percentage (%)

Explanation: The formula calculates the ratio of vertical rise to horizontal run, then converts it to a percentage by multiplying by 100.

3. Importance of Gradient Calculation

Details: Proper gradient calculation is crucial for wheelchair accessibility, building code compliance, vehicle ramp design, and ensuring safe slope angles for various applications.

4. Using the Calculator

Tips: Enter rise (vertical height) and run (horizontal length) in meters. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum gradient for wheelchair ramps?
A: For wheelchair accessibility, maximum gradient is typically 1:12 (8.33%) for commercial buildings, with 1:20 (5%) preferred for easier access.

Q2: How does gradient relate to angle?
A: Gradient percentage = tan(angle) × 100. A 45° angle equals 100% gradient, while 30° equals approximately 57.7% gradient.

Q3: What gradients are suitable for vehicle ramps?
A: Vehicle ramps typically range from 10-20% gradient, with steeper gradients requiring special consideration for vehicle type and usage.

Q4: Are there building code requirements for gradients?
A: Yes, most jurisdictions have specific gradient requirements for accessibility ramps, parking garages, and pedestrian walkways in building codes.

Q5: How accurate should gradient measurements be?
A: For construction purposes, gradient should be measured to within 0.1% accuracy to ensure compliance with regulations and safety standards.