Second, Excel enables . What if the load angle changes from 0° to 45°? What if we use Grade 50 steel instead of A36? By linking key cells, the designer can run a sensitivity analysis in seconds. A well-structured sheet will include a "Design Margin" output—showing, for instance, that the tear-out safety factor is 2.3 versus a code minimum of 2.0.
Third, Excel provides . Many engineering firms have a locked, password-protected "Lifting Lug Calculator.xlsm" with macros that enforce company design rules. This ensures that a junior engineer in one office produces the same results as a senior in another office.
