I have been a framer for 16 years and this book has been useful on most of the houses I build. Not only does it have all the standard rafter tables but the irregular combinations as well. It is very easy to understand and gives all the needed formulas. A MUST have for any framer.

Summary: This is a guide to framing any gable, Dutch, Tudor, California, gambrel, shed, or gazebo roof -- including irregular roofs that can stump even experienced roof cutters. This book takes you through every measurement and every cut on each type of roof so you can understand exactly what's required. The author explains how to use an inexpensive hand-held calculator to figure any common, hip, valley, or jack rafter length in seconds -- including rafters on irregular roofs and rafter pitches or lengths that aren't in any rafter table.

The Roof Framers Field Manual is the one book every roof framer will carry with them to the job. Put it on your portable computer device and all the answers to difficult to solve framing problems will be at your fingertips (kindle version only). This paperback version has big bold drawings and diagrams that help to explain how to cut almost every kind of rafter. Each page tackles another framing scenario. Learn the science and math of roof framing with easy to understand formulas and illustrations. This book even explains how to program your portable device like a calculator or i phone to do the heavy lifting on complex roof framing projects. This book will be indispensable to you. Save time, Save money. Amaze your coworkers with your newfound knowledge. Written by a roof framer for roof framers. Now you'll know every trick in the book.