Ok, this was a layout to find my roof pitch. This was a 5/12. Which works out to 22.4 degrees. I decided, due to the difficulty of setting saws to this exact degree, I opted to use 22.5 degress, of which almost all chop saws have a lock in setting at this degree. Worked great. However, had this shed had HIPS..I would have opted for 5/12. Fortunately..it didn't.