Finish the following sentence with the best choice: How to remove rough edges from wood?

Choices:
- Once the wood is sawed and chopped to specification, sand the wood down with good quality high grit sand paper
- Before the wood is sawed and chopped to specification, sand the wood down with good quality high grit sand paper

Answer:
Once the wood is sawed and chopped to specification, sand the wood down with good quality high grit sand paper