Kits where you make your own sails come with sail cloth and a template sheet. Cut out the template and place it on the sail cloth. Draw a pencile line around the template then carefully cut the pattern out keeping the scissors inside the line. I use a sewing machine to stitch the hems and vertical lines. If you can possibly learn how to use a sewing machine, by all means do it; It really isn't that difficult and it doesn't make your voice any higher.