Question: How to make the boards for your stool?
Option 0: Cut you board's down to your desired height. Take a mitre saw and create dovetails on the sides to place biscuit joints on the boards. Nail in the wooden biscuits.
Option 1: Cut you board's down to your desired height. Take a mitre saw and create dovetails on the sides to place biscuit joints on the boards. Glue in the wooden biscuits.
Answer: 1