>I can't caution enough, as a registered structural engineer though, 85% >of structural failures are details, connections, etc. , NOT the main >member (beam or column). Think Holiday Inn Kansas City where a small >connection killed and severely injured many; The I-35 bridge in >Minneapolis where a plate failed, and this isn't just big structures. >Compared to the entire structure, the cost of a competent engineer is >inexpensive, and may save money by recommending more economical material. You mean like this guy, who built a business out of checking such things ... http://www.timesonline.co.uk/tol/comment/obituaries/article4848535.ece -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist