In this video

With the top and bottom bracket locations marked, use a string line pulled taut between them to visualize the slope of the handrail. Have an assistant help by holding the string at the marked points on the wall. This string line will guide the placement of intermediate brackets. Locate additional studs along this string line, ensuring they are evenly spaced. Mark the position for each intermediate bracket where it intersects with a stud. Once all bracket locations are finalized and marked, use a drill/driver to attach the mounting brackets to the wall studs using the provided screws. Ensure each bracket is level before securing.