1. An apparatus for performing statistical analysis on a structural member comprising; A first design spreadsheet capable of accepting a plurality of first design inputs where in said first design inputs are compared to a plurality of design criteria; A second design spreadsheet capable of accepting a plurality of second design inputs wherein said second design inputs are compared to said plurality of design criteria; and A comparison operable to compare said first design inputs against said second design inputs wherein a designer can determine design by evaluating which of said plurality of first design inputs and said plurality of said second design inputs satisfies said design criteria.