roof pitch calculator 20
https://getmeasureyourroofpath.westhavenscope.com/posts/how-to-measure-your-roof-for-accurate-material-estimates
Need to figure out the angle of your roof for a new construction or a repair job? A roof pitch calculator quickly converts measurements like rise and run into slope, degrees, or even rafter length, saving you from complicated trig. It's handy when planning for snow loads, picking the right shingles, or just making sure your framing crew cuts rafters cleanly and consistently.