The north wall of my office is 106 inches tall, the south wall is 80 inches tall and the east wall is 111 inches long. I needed to add trim between the ceiling and east wall. How long did I have to cut my trim to fit correctly?
To find the length of trim needed, you'll need to calculate the height difference between the north and south walls and subtract it from the length of the east wall.
The height difference between the north and south walls is 106 - 80 = 26 inches.
So, the length of trim needed is 111 - 26 = <<111-26=85>>85 inches.