A ramp is comprised of horizontal sloped runs connected by level landings between runs. Any slope greater than 1:20 and less than 1:12 along an accessible route shall be considered a ramp that is required to comply with ADA accessibility codes and compliances. The least possible slope should be used whenever possible. The maximum allowable slope in any new construction is 1:12 with a maximum rise of 30” | 76.2 cm without a landing.** **A ramp with a slope between 1:12 and 1:16 can have a maximum horizontal length of 30’ | 9.14 m without a landing. A ramp with a slope between 1:16 and 1:20 can have a horizontal run up to 40’ | 12.19 m before requiring a landing.

A ramp is comprised of horizontal sloped runs connected by level landings between runs. Any slope greater than 1:20 and less than 1:12 along an accessible route shall be considered a ramp that is required to comply with ADA accessibility codes and compliances. The least possible slope should be used whenever possible. The maximum allowable slope in any new construction is 1:12 with a maximum rise of 30” | 76.2 cm without a landing.** **A ramp with a slope between 1:12 and 1:16 can have a maximum horizontal length of 30’ | 9.14 m without a landing. A ramp with a slope between 1:16 and 1:20 can have a horizontal run up to 40’ | 12.19 m before requiring a landing.

What is the maximum allowable slope for an ADA accessible ramp?

The maximum allowable slope in any new construction is 1:12 with a maximum rise of 30” | 76.2 cm and a maximum horizontal run without a landing of 30’ | 9.14 m.

How far can a ramp go without a landing?

A ramp with a slope between 1:12 and 1:16 can have a maximum horizontal length of 30’ | 9.14 m without a landing. A ramp with a slope between 1:16 and 1:20 can have a horizontal run up to 40’ | 12.19 m before requiring a landing.

What is the minimum slope of a ramp?

Any slope greater than 1:20 and less than 1:12 along an accessible route shall be considered a ramp that is required to comply with ADA accessibility compliances.

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**Maximum Slope:** 1:12**Minimum Slope**: >1:20**Maximum Rise:** 30” | 76.2 cm**Maximum Horizontal Run (1:12-1:16):** 30’ | 9.14 m**Maximum Horizontal Run (1:16-1:20):** 40’ | 12.19 m

Drawings include:

Ramp Slopes side elevation (detail), side (runs)

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