Prepare a subbase for the ramp with 4 inches of compacted gravel.
Building a ramp over concrete steps. How to build a concrete ramp? A standard unit is 30 feet long, 30 inches wide, and 30 inches high. The mixture of water and cement is made.
To determine the slope of your ramp and how much horizontal space it will require, use the following calculation per the ada guidelines: Instead, build a small landing over the steps first, so that ramp joists do not need to be notched to fit. A 4 inch layer of compacted gravel should be laid down as a foundation for the ramp.
In this article, we will provide.