Step 1: Tools and Materials
You'll only need simple measuring, marking, and cutting tools.
Step 2: The Two Critical Measurements
The second critical measurement is the length to be supported by the stand. Measure diagonally across the bottom of the laptop, starting and ending about 2 inches in from the edge. Adjust this diagonal as needed to avoid bumps, feet, and other extrusions from the laptop's bottom. In my case, the measurement was 15 1/2 inches.
Step 3: Measure and cut out the laptop stand's legs
You can repeat these measurements for the second leg or use the first leg as a pattern.