Thanks for the help guys, got it all figured out. My mistake 5-12 roof. The
reason I am making my own vents is because dealers want 135.00$ +tax per
unit, I need 4 and can make them a hell of a lot cheaper.

Sal

"sal" wrote in message
...
Can someone explain how I can cut an 10 in. stovepipe with an 22% angle
it is for an vent pipe on an 4-12 roof .

sal