1. What is a Commercial Wheelchair Ramp Calculator?

Definition: This calculator determines the required length of a wheelchair ramp based on ADA (Americans with Disabilities Act) standards of 1:12 slope.

Purpose: It helps architects, builders, and property owners design ADA-compliant wheelchair ramps for commercial and public spaces.

2. How Does the Calculator Work?

The calculator uses the ADA standard formula:

Where:

• \( L \) — Required ramp length (feet)
• \( H \) — Vertical height to overcome (feet)

Explanation: For every 1 inch of vertical rise, the ADA requires at least 12 inches (1 foot) of ramp run. This 1:12 ratio ensures safe and accessible slopes.

3. Importance of ADA Ramp Compliance

Details: Proper ramp calculation ensures accessibility for wheelchair users, compliance with legal requirements, and safe navigation for all users.

4. Using the Calculator

Tips: Simply enter the vertical height in feet that the ramp needs to overcome. The calculator will provide the minimum required ramp length.

5. Frequently Asked Questions (FAQ)

Q1: What's the maximum height before requiring a landing?
A: ADA requires a landing every 30 inches of vertical rise (30 feet of ramp run).

Q2: Can I use a steeper slope than 1:12?
A: Only for existing constraints (max 1:8 for residential, 1:10 for temporary ramps). 1:12 is required for commercial/public ADA compliance.

Q3: What about ramp width requirements?
A: ADA requires minimum 36 inches clear width between handrails.

Q4: Does this include handrail requirements?
A: No, this calculates length only. ADA requires handrails on both sides for ramps with >6" rise or >72" length.

Q5: How does this work for multiple ramp runs?
A: Each segment must maintain 1:12 slope. Landings must be at least 60 inches long between runs.