Here are the steps to install crown molding:

1. Measure the walls of the room and determine how much molding you’ll need to buy.
2. Set up your saw.
3. Make scarf cuts.
4. Cut the first piece.
5. Cut the inside corners.
6. Cope the joint.
7. Cut outside corners.
8. Attach the molding to the wall.

You will need the following tools: Drill, Tape mea Pencil, Paint (optional), Safety glasses.

I hope that helps! Let me know if you have any other questions.