Standard ramp slope for disabled access
The “Switch back” can be used when you want to save space so change the direction of the ramp, but the turns must be either 90 degrees or 180 degrees. If the change of direction is 180 degrees, the wheelchair disembarkation from going around should be twice as long as needed for a 90 degree turn and should not have an incline.
The CNBC (Canada Mortgage and Housing Corporation) recommends that wheelchair ramps should have 1 inch of rise for every 12 inches of length known as (RUN: The horizontal length of a surface in slope) . This makes the wheelchair slope required a ratio of 1:12. If the person needs an easier slope, one can use one or 1:16 or 1:20 but before making such a decision, it is recommended to speak with your occupational therapist.