Measure the inside of your corner wall cabinet with a tape measure. Subtract 1/8 inch on each side to account for the adjustable shelf. Draw the shelf with dimensions on a notepad.
Determine the amount of shelves you need, and purchase the proper amount of material. Most shelving is made from 3/4-inch thick melamine.
Mark the shelves out on the melamine. Mark the lines using a straight-edge and a pencil. Cut each shelf using a circular saw.
Place the adjustable shelf jig into the corner wall cabinet. The adjustable shelf jig is a thin plastic piece with pre-drilled holes through it. It is designed to be placed inside the cabinet as a template with which to drill each adjustable shelf hole. Place the jig near the front of the cabinet side and clamp it using the supplied clamps. Drill each shelf hole with a power drill and the drill bit provided with the kit.
Continue until the corner wall cabinet has been drilled for adjustable shelves at each corner.
Place shelf pins into the holes at the desired location.
Lift the shelf into the corner cabinet. Turn the shelf so that it sits onto the shelf pins.
Install the remaining shelves inside the corner wall cabinet.