Ramp Length Formula:
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Definition: This calculator determines the minimum required ramp length based on height according to UK Building Regulations Part M.
Purpose: It helps architects, builders, and accessibility consultants design compliant ramps for wheelchair access.
The calculator uses the formula:
Where:
Explanation: UK Part M regulations require a minimum slope of 1:12 (1 unit vertical to 12 units horizontal) for accessible ramps.
Details: Proper ramp length ensures accessibility compliance, safe wheelchair use, and meets building regulation requirements.
Tips: Simply enter the height difference in meters. The calculator will determine the minimum required ramp length.
Q1: Is 1:12 the only permitted slope?
A: For public buildings, 1:12 is the maximum permitted slope. Steeper slopes may be allowed in existing buildings where space is limited.
Q2: What about landings?
A: This calculator provides the sloped length only. Remember to include level landings at top, bottom, and intermediate points for long ramps.
Q3: Does this apply to all ramps?
A: This is the general requirement. Special circumstances (like short rises) may have different rules.
Q4: What's the maximum rise for a single ramp?
A: Part M recommends no single ramp should have a rise greater than 2 meters before including a landing.
Q5: Are handrails required?
A: Yes, ramps with a rise greater than 600mm require handrails on both sides according to Part M.