Handicap Ramp Calculator

Ramp Length Equation:

\[ \text{Total Length} = \text{Rise} \times \text{Ratio} + \text{Landings} \]

Total Length:

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1. What is the Handicap Ramp Calculation?

The handicap ramp calculation determines the total length needed for a ramp based on the vertical rise, required slope ratio, and landing space. It ensures compliance with accessibility standards for wheelchair users.

2. How Does the Calculator Work?

The calculator uses the ramp length equation:

\[ \text{Total Length} = \text{Rise} \times \text{Ratio} + \text{Landings} \]

Where:

\( Rise \) — Vertical height to overcome (feet)
\( Ratio \) — Slope ratio (e.g., 12:1 ratio would be 12)
\( Landings \) — Additional space for platform landings (feet)

Explanation: The equation calculates the running slope length plus any required landing space at top/bottom of the ramp.

3. Importance of Proper Ramp Length

Details: Correct ramp length is crucial for ADA compliance, user safety, and accessibility. Too steep ramps can be dangerous for wheelchair users.

4. Using the Calculator

Tips: Enter rise in feet, ratio as a number (e.g., 12 for 12:1 ratio), and landing length in feet. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the standard ramp ratio?
A: ADA requires 1:12 maximum slope (1 inch rise per 12 inches run) for commercial ramps. Some residential ramps may use 1:8 or 1:10.

Q2: How much landing space is required?
A: ADA requires 60" minimum at top and bottom, and every 30 feet of horizontal run.

Q3: What's the maximum rise before a landing?
A: ADA requires a landing every 30" of rise (30 feet of run at 1:12 ratio).

Q4: Are there width requirements?
A: ADA minimum width is 36" between handrails, with 42" recommended for two-way traffic.

Q5: What about handrail requirements?
A: Handrails required on both sides if rise > 6" or run > 72", 34-38" height, with extensions at top/bottom.