1. What is a UK Ramp Ratio Calculator?

Definition: This calculator determines the ratio of a ramp's length to its height according to UK accessibility standards.

Purpose: It helps architects, builders, and designers ensure ramps meet UK accessibility requirements for wheelchair users and people with mobility challenges.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( R \) — Ramp ratio (unitless)
• \( L \) — Length of ramp (meters)
• \( H \) — Height difference (meters)

Explanation: The ramp length is divided by the height difference to determine the slope ratio, which must meet UK standards for accessibility.

3. Importance of Ramp Ratio Calculation

Details: Proper ramp ratio ensures accessibility compliance, safety for wheelchair users, and adherence to UK building regulations (Approved Document M).

4. Using the Calculator

Tips: Enter the ramp length and height difference in meters. Both values must be > 0. The result shows the ratio that should typically be ≥15 for public access ramps.

5. Frequently Asked Questions (FAQ)

Q1: What is the UK standard ramp ratio?
A: For public buildings, the recommended ratio is 1:15 (1m rise per 15m length), though 1:12 may be acceptable in some cases.

Q2: When is a ramp required in the UK?
A: When there's a level change > 15mm, though steps may be acceptable for changes up to 380mm if space doesn't permit a ramp.

Q3: What's the maximum rise for a single ramp?
A: 2m before requiring a landing (1.5m minimum length).

Q4: Are handrails required?
A: Yes, on both sides for ramps steeper than 1:20 or longer than 2m.

Q5: What about ramp width requirements?
A: Minimum 1.5m width for public buildings, though 1m may be acceptable in existing buildings where space is limited.