ADA ramp max slope should be 1:12, i.e. 8.33% which is (IMHO) reasonable.
https://www.ada-compliance.com/ada-compliance/ada-ramp
ADA ramp max slope should be 1:12, i.e. 8.33% which is (IMHO) reasonable.
https://www.ada-compliance.com/ada-compliance/ada-ramp