Tommy Mac Discussions › Forums › Fix-it Forum: Home Improvement & Do It Yourself Repair Forum › Vinyl siding corner › Vilyl siding corner
This explains it better than I could restate it, has pictures, too!
357 kb pdf file — http://www.alcoahomes.com/alcoahomes/en/protools/prodspecs/alcoa/pdf/installGuide/Repairs.pdf
