http://www.homebuildingandrepairs.com/engineering/index.html Click on this link if you’re looking for more information about engineering, design and framing. If you’re a do-it-yourselfer, handyman, remodeling professional or even a new home builder, you must be aware of the consequences of cutting a wood truss or any part of the engineered roofing system. I’ve done it before and it cost me dearly. Make sure that you check with the manufacturer or a structural engineer, before cutting any components of an engineered roofing system. Don’t forget to visit our websites and check out some of our books.