1. What is Ramp Slope?

Ramp slope is the ratio of vertical rise to horizontal run, representing the steepness of a ramp. It is commonly expressed as a ratio, percentage, or angle and is crucial for accessibility and safety in construction.

2. How Does the Calculator Work?

The calculator uses the fundamental slope formula:

Where:

• \( Rise \) — Vertical height difference (inches)
• \( Run \) — Horizontal distance (inches)
• \( \theta \) — Angle of inclination (degrees)
• \( Slope \) — Ratio of rise to run (unitless)

Explanation: The slope represents the tangent of the angle of inclination, providing a mathematical relationship between vertical and horizontal components.

3. Importance of Ramp Slope Calculation

Details: Proper ramp slope calculation is essential for wheelchair accessibility, building code compliance, safety standards, and ensuring comfortable use for all individuals.

4. Using the Calculator

Tips: Enter rise and run values in inches. Both values must be positive numbers. The calculator will provide both the slope ratio and the corresponding angle in degrees.

5. Frequently Asked Questions (FAQ)

Q1: What is the maximum allowable slope for wheelchair ramps?
A: According to ADA standards, the maximum slope for wheelchair ramps is 1:12 (8.33% or about 4.76 degrees).

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

Q3: What's the difference between slope and gradient?
A: Slope is typically expressed as a ratio (rise:run), while gradient is usually expressed as a percentage. They represent the same concept mathematically.

Q4: Can I use different units for rise and run?
A: Yes, as long as both measurements use the same units, the slope calculation will be accurate.

Q5: Why is ramp slope important for safety?
A: Proper slope ensures that ramps are not too steep, preventing accidents, making them accessible for wheelchair users, and complying with building codes.