Question: To cut the ceiling for a club house made out of cardboard.
Option 0: I use another cardboard to cut out the roof plate. If you don't have a wide enough piece of cardboard, then just glue several parts together.
Option 1: I use another cardboard to cut out the roof plate. If you don't have a wide enough piece of cardboard, then just glue several parts of paper together.
Answer: 0