There is no definitive answer to this question since it can depend on a number of factors, such as the weight of the person using the ramp, the surface on which the ramp will be used, and other factors. However, in general, it is recommended that a wheelchair ramp have a slope of 1:12 or less, which means that for every 12 inches (or 1 foot) of rise, there should be 1 inch of horizontal distance.

There is no definitive answer to this question since each situation is unique. However, a good rule of thumb is to make the ramp slope at least 1 inch for every 12 inches in width. So, if your ramp is 3 feet wide, it should have a slope of at least 1 inch. Additionally, the ramp should not be too steep or too long – both of which could create a safety hazard for those using it. For more specific guidelines, be sure to consult your local building codes or disability advocacy organizations.