Anyone have experience with Research Engineers' program "Section Wizard?"
The price is $700.00, $500 for Staad Pro owners. The ads I've seen make
large claims.
enercalc has a good module that allows combination of all structural shapes as well as circular and rectangular shapes that are user specified. Their whole package is around $500 and has many useful modules.
Autocad is neither precisely free but its 3D modules allow for the calculation of mechanical properties of both sections and volumes. I rarely use it but the feature is within my Autocad 12 win module AME.