I started with a WEN 16-inch and have cut many 11X14 pieces. You may have to use a spiral if you're cutting along an edge in a corner. Don't let spirals scare you. They are much easier than you think. Just remember to GO SLOW until you get use to them. I've also noticed the spirals have a tendency to "bow" as you push your work into the blade. The thicker the work piece, the more the bow. This is another reason to go slow. When you get to a corner or sharp turn, stop pushing into the blade and allow the blade to "catch up" before making your turn. For the most part, you should be able to cut most pieces with a straight blade unless the piece is heavily fretted in the corners. Fortunately, my new Pegas cured any concerns with this issue, especially with a 30-inch throat. Good luck with your cut.