Progress Course Complete & Continue Next Lesson Learn More Chapter 1 2 Lessons MINI Arch Assembly BIG Arch Assembly Chapter 2 2 Lessons Wall Framing Door Header Chapter 3 1 Lesson Raising the Walls Chapter 4 1 Lesson Wall Trim Height Chapter 5 2 Lessons Door Construction Door Installation Chapter 6 1 Lesson The CNC at Work Course Complete & Continue Next Lesson Learn More Chapter 1 BIG Arch Assembly