Hi Ken, Try these resources 1 - instead on the the driveway tool, use the floor tool. With the floor tool, you can set the exact shape. If you need to follow a slope, draw different pieces and set the elevation to "Float above topography" 2 - If you have a ramp + driveway, use a piece of freehand roof, set the pitch to follow the slope, set the elevation to hide the fascia, and texture as desired Hope this helps Patricia