Bob Hundman has published switch templates in "N-Scale" magazine periodically for switches from No. 11 through No. 20.
Roger There is a good reference page here from Rick Blanchard of the San Diego (Calif) N club http://www.urbaneagle.com/data/RRturnouts.html Near the bottom of the page is a section called patterns with various turnouts shown. Have not verfied that these are actual size for N scale. You may have to print them out and then go to an adjustable office copier where you can make fine (1%) adjustments up/down to get it to the correct size to use for a template. eNjoy Don B