Find Studs and Mount Support Cleats

What happens here

Before installing any shelves, use a stud finder to accurately locate the wall studs within the under-stairs nook. Mark the center of each stud with a pencil. Use a laser level or a spirit level to draw a straight line across the wall at the desired height for the bottom edge of each shelf. Predrill holes through the 1-inch thick wooden support cleats at the marked stud locations. Secure the cleats to the wall studs using screws and a power drill, ensuring they are perfectly level.

Goal: Locate wall studs within the under-stairs nook, mark their positions, and then attach horizontal support cleats to the studs using a drill and level.